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data-target=".child-4980"></span></a><div class="submenu-layer"><div class="submenu-content"><span class="section-title"><a href="/en/open-science/">Open Science at a glance</a></span><ul class="sublevel-1 child-4980"><li class="collapsed has-sub"><a href="/en/open-science/open-access/"><span class="link-label">Open Access</span><span class="toggle-subnav" data-target=".child-4981"></span></a><ul class="sublevel-2 collapsed child-4981"><li><a href="/en/open-science/open-access/funding/"><span>Funding</span></a></li><li><a href="/en/open-science/open-access/legal-aspects/"><span>Legal Aspects</span></a></li><li><a href="/en/open-science/open-access/statistics/"><span>Statistics</span></a></li><li><a href="/en/open-science/open-access/freidok/"><span>FreiDok plus</span></a></li><li><a href="/en/open-science/open-access/diamond-open-access/"><span>Diamond Open Access</span></a></li><li><a href="/en/open-science/open-access/predatory-publishing/"><span>Predatory Publishing</span></a></li><li><a href="/en/open-science/open-access/pis/"><span>Persistent Identifiers</span></a></li><li><a href="/en/open-science/open-access/funding-acknowledgements/"><span>Funding Acknowledgements</span></a></li><li><a href="/en/open-science/open-access/tools/"><span>Tools</span></a></li></ul></li><li class="collapsed has-sub"><a href="/en/open-science/research-data-open-data/"><span class="link-label">Research Data / Open Data</span><span class="toggle-subnav" data-target=".child-4982"></span></a><ul class="sublevel-2 collapsed child-4982"><li><a href="/en/open-science/open-access/freidok/"><span>FreiDok plus</span></a></li><li><a href="/en/open-science/research-data-open-data/tools/"><span>Tools</span></a></li></ul></li><li class="collapsed has-sub"><a href="/en/open-science/open-educational-resources/"><span class="link-label">Open Educational Resources</span><span class="toggle-subnav" data-target=".child-4983"></span></a><ul class="sublevel-2 collapsed 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print</span></a></li><li class="collapsed"><a href="/en/study-spaces/lost-property/"><span>Lost property</span></a></li><li class="collapsed"><a href="/en/study-spaces/dos-and-donts/"><span>Dos and don’ts</span></a></li><li class="collapsed"><a href="/en/study-spaces/accessible-library/"><span>Accessible library</span></a></li><li class="collapsed"><a href="/en/locations/campus-libraries/"><span>Campus libraries</span></a></li></ul></div></div></li><li class="collapsed has-sub" data-menu-id="54"><a href="/en/about-us/"><span class="link-label">About us</span><span class="toggle-subnav" data-target=".child-54"></span></a><div class="submenu-layer"><div class="submenu-content"><span class="section-title"><a href="/en/about-us/">About us at a glance</a></span><ul class="sublevel-1 child-54"><li class="collapsed has-sub"><a href="/en/about-us/latest-news/"><span class="link-label">Latest News</span><span class="toggle-subnav" data-target=".child-26"></span></a><ul class="sublevel-2 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class="link-label">Working at the library</span><span class="toggle-subnav" data-target=".child-4238"></span></a></li></ul></div></div></li></ul> </nav> </div> <div id="miniSearch" role="search"> <form action="https://katalog.ub.uni-freiburg.de/link" method="get"> <span class="input-flush"> <label for="SearchField" class="sr-only sr-only-focusable">Search this site</label> <input class="searchfield input-prompt" type="text" id="SearchField" name="simple" data-placeholder="Search ..." placeholder="Search ..."> <span class="flush-button hidden"><span class="icon icon-fa-close-circle"></span></span> </span> <button id="mainSearchButton" aria-label="Suchen" type="submit"><span class="icon icon-ubfr-search"></span></button> <input type="hidden" name="searchSelection" value="katalog" /> <input type="hidden" name="source" value="homepage" /> <input type="hidden" name="language" value="en" /> </form> </div> </div> <div class="header-banner-print"> <img src="/images/ub.logo_de_sw_web-druck.svg" alt="University Library Freiburg" /> </div> </div> </header> <div id="contentWrapper"> <div class="container"> <div class="row"> <div class="col-md-12"> <div class="breadcrumb-navigation" role="navigation"> <ul> <li> <a href="/en/"> <span>University Library Freiburg</span> </a> </li> <li> <a href="/en/research/"> <span>Research</span> </a> </li> <li> <a href="/en/research/where-can-i-find-what-i-need/"> <span>Where can I find what I need?</span> </a> </li> <li class="current"> <a href="/en/research/where-can-i-find-what-i-need/search-by-topic/"> <span>Search by topic</span> </a> </li> </ul> </div> </div> </div>  <div class="row"> <div class="col-md-9"> <div id="pageTeaser" role="main"> <div id="c779" class="o-cobj o-cobj--default o-cobj--type-text"><a id="c21803"></a><header><h1> Search by topic </h1></header><div class="s-rte"><p>A number of catalogues, portals, databases, bibliographies, overviews and similar resources are available when you need to search for literature and media on a particular topic.</p></div></div> </div> </div> </div> <div class="row"> <div id="mainContent" class="content-col default-content-col col-md-9 col-sm-8" role="main" aria-labelledby="pageTeaser"> <div class="accordion-container"> <div class="accordion" data-init-active="false"> <div class="accordion-item" id="c21002"> <span class="accordion-head"> <span class="main-head">Katalog plus</span> </span> <div class="accordion-content"> <div id="c21008" class="o-cobj o-cobj--default o-cobj--type-text"><a id="c21805"></a><div class="s-rte"><p>You can perform a topic search in the University Library’s collections in Katalog plus. The advanced search function in the “Books & more” section features a subject heading category that can be used to refine searches for literature published from 1995. Not all of the older publications can be searched by topic.</p><p>Use the index to find suitable subject headings for your search. You can view the index function in the search field itself.</p><p>You can select various facets in the list of hits to narrow your results down by topic.</p><p>You can find the subject heading keywords used under the “Content details” tab in each data record. In many cases, there are also notations from the <a href="https://rvk.uni-regensburg.de/regensburger-verbundklassifikation-online" target="_blank" class="text-link-external">Regensburg Classification Scheme Online</a> (RVK Online). This system can also be used to gain an overview of the titles relating to your subject in the University Library Freiburg’s collection.</p></div></div> </div> </div> <div class="accordion-item" id="c21003"> <span class="accordion-head"> <span class="main-head">Subject catalogues</span> </span> <div class="accordion-content"> <div id="c1297" class="o-cobj o-cobj--default o-cobj--type-text"><a id="c21809"></a><div class="s-rte"><p>Our traditional subject catalogues can also be helpful when conducting research on your work. They can be used to devise better search strategies.</p></div></div> </div> </div> <div class="accordion-item" id="c21004"> <span class="accordion-head"> <span class="main-head">Subject portals</span> </span> <div class="accordion-content"> <div id="c21009" class="o-cobj o-cobj--default o-cobj--type-text"><a id="c21813"></a><div class="s-rte"><p>You can find subject-specific collections, University Library services and other online resources on our subject portals. For example:</p><ul><li>Databases</li><li>Specialised catalogues, bibliographies, sourcebooks and collections of materials</li><li>Online portals, virtual subject libraries</li><li>Learning materials</li><li>Specialised institutions</li></ul><p>Please contact our subject librarians if you have any questions about the subject portals. You can find their contact details on the respective subject portal and in the list of subject librarians.</p></div></div> </div> </div> <div class="accordion-item" id="c21005"> <span class="accordion-head"> <span class="main-head">Databases</span> </span> <div class="accordion-content"> <div id="c21007" class="o-cobj o-cobj--default o-cobj--type-text"><a id="c21817"></a><div class="s-rte"><p>The databases are more extensive than Katalog plus, so you can make your searches more specific. The major advantage is the ability to perform national searches by subject. There are various types of databases, such as essay databases, subject bibliographies, full-text databases and bibliographies of newspapers and journals. You can find suitable databases for your searches in the database information system (DBIS) or in the subject portals.</p></div></div> </div> </div> <div class="accordion-item" id="c21006"> <span class="accordion-head"> <span class="main-head">National library services</span> </span> <div class="accordion-content"> <div class="content-slider"> <nav class="content-slider-nav"> <ul> <li class="active" data-slide-id="0"> <span class="index">1</span>Webis </li> <li data-slide-id="1"> <span class="index">2</span>Virtual subject libraries </li> </ul> </nav> <div class="royalSlider contentSlider rsDefault"> <div class="slider-item"> <div id="c21013" class="o-cobj o-cobj--default o-cobj--type-text"><a id="c21821"></a><header><h3> Webis </h3></header><div class="s-rte"><p>You will find an overview of German libraries’ special subject collections and specialised information services in Webis, which provides regional and national information, services and contact details for your specialist field. </p><p><a href="http://wikis.sub.uni-hamburg.de/webis/" title="Webis" target="_blank" class="text-link-external">Webis</a></p></div></div> </div> <div class="slider-item"> <div id="c21014" class="o-cobj o-cobj--default o-cobj--type-text"><a id="c21825"></a><header><h3> Virtual subject libraries </h3></header><div class="s-rte"><p>You will find relevant online resources for your specialist field in the virtual subject libraries. The Common Library Network (GBV) offers a subject-specific list of all virtual subject libraries.  </p><p><a href="https://www.gbv.de/bibliotheken/vifa-olc-ssg/" title="ViFa" target="_blank" class="text-link-external">Virtuelle Fachbibliotheken</a></p></div></div> </div> </div> </div> </div> </div> </div> </div> </div> <div class="small-content-col col-md-3 col-sm-4" role="contentinfo" aria-labelledby="rightColLabel"> <div class="sr-only" role="heading" aria-level="5" id="rightColLabel">Weiterführende Informationen und Kontakte</div> <div id="c13390" class="o-cobj o-cobj--default o-cobj--type-shortcut"><a href="https://katalog.ub.uni-freiburg.de/?lng=en" target="_blank" class="simple-link autoheight-grid-element"><span class="link-heading"> Katalog plus </span></a><a href="/en/research/where-can-i-find-what-i-need/search-by-topic/subject-catalogues/" class="simple-link autoheight-grid-element"><span class="link-heading"> Subject catalogues </span></a><a href="/en/support/subject-portals/" class="simple-link autoheight-grid-element"><span class="link-heading"> Subject portals </span></a><a href="http://dbis.ur.de/?bib_id=ubfre" target="_blank" class="simple-link autoheight-grid-element"><span class="link-heading"> Datenbank-Infosystem (DBIS) </span></a></div> </div> </div>  </div> </div> <footer id="pageFooter"> <div class="container"> <nav id="footerNavigation"><ul class="row"><li class="col-sm-3"><span class="nav-title"><a href="/en/contact/">Contact</a></span><ul><li><a href="/en/contact/chat/">Chat</a><li><li><a href="/en/contact/contact-form/">Contact form</a><li><li><a href="/en/contact/departments-from-a-z/">Departments from A–Z</a><li><li><a href="/en/contact/contact-partners/">Contact partners</a><li><li><a href="/en/contact/subject-specialists/">Subject librarians</a><li></ul></li><li class="col-sm-3"><span class="nav-title"><a href="/en/locations/">Locations</a></span><ul><li><a href="/en/locations/opening-hours/">Opening hours</a><li><li><a href="/en/locations/address-visit/">Address & visit</a><li><li><a href="/en/locations/campus-libraries/">Campus libraries</a><li></ul></li><li class="col-sm-3"><span class="nav-title"><a href="/en/legal-information/">Legal information</a></span><ul><li><a href="/en/legal-information/site-accessibility/">Site accessibility (DE)</a><li><li><a href="/en/legal-information/terms-of-library-use/">Terms of library use (DE)</a><li><li><a href="/en/legal-information/privacy/">Privacy (DE)</a><li><li><a href="/en/legal-information/library-fee-regulations/">Library fee regulations (DE)</a><li><li><a href="/en/legal-information/state-higher-education-act/">State Higher Education Act (DE)</a><li><li><a href="/en/legal-information/terms-of-use-for-digitised-material/">Terms of use for digitised material (DE)</a><li></ul></li><li class="col-sm-3"><span class="nav-title"><a href="/en/other-information/">Other information</a></span><ul><li><a href="/en/other-information/legal-notice/">Legal notice</a><li><li class="target-locked"><a href="/en/intranet/">Intranet</a></li><li><a href="/en/other-information/your-ip-address/">Your IP address</a><li><li><a href="/en/other-information/sitemap/">Sitemap</a><li></ul></li></ul></nav> </div> </footer> <div id="fixedSidePanel"> <div class="logo-wrapper"> <a href="http://www.uni-freiburg.de/" target="_blank"> <img src="/images/uni-freiburg-logo.svg" alt="University of Freiburg" /> </a> </div> </div> <div id="chatButton"><a id="mibew-agent-button" title="Chat" href="https://chat.ub.uni-freiburg.de/chat?locale=de&style=ubfr" rel="nofollow" target="_blank" onclick="Mibew.Objects.ChatPopups['59661f40e237765b'].open();return false;"><i class="fa fa-comments-o" aria-hidden="true"></i><br />Chat</a><script type="text/javascript">(function(){ Mibew.ChatPopup.init({"id":"59661f40e237765b","url":"https:\/\/chat.ub.uni-freiburg.de\/chat?locale=de&style=ubfr","preferIFrame":false,"modSecurity":false,"height":480,"width":640,"resizable":true,"styleLoader":"https:\/\/chat.ub.uni-freiburg.de\/chat\/style\/popup\/ubfr"});})();</script></div> <script> function loadStatus() { var xhttp = new XMLHttpRequest(); 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