{"version":"1.0","provider_name":"Open Economics Guide der ZBW","provider_url":"https:\/\/openeconomics.zbw.eu\/de\/","author_name":"osguide","author_url":"https:\/\/openeconomics.zbw.eu\/de\/author\/osguide\/","title":"Unpaywall &#8211; Open Economics Guide der ZBW","type":"rich","width":600,"height":338,"html":"<blockquote class=\"wp-embedded-content\" data-secret=\"qrG9MMftvC\"><a href=\"https:\/\/openeconomics.zbw.eu\/de\/knowledgebase\/unpaywall\/\">Unpaywall<\/a><\/blockquote><iframe sandbox=\"allow-scripts\" security=\"restricted\" src=\"https:\/\/openeconomics.zbw.eu\/de\/knowledgebase\/unpaywall\/embed\/#?secret=qrG9MMftvC\" width=\"600\" height=\"338\" title=\"&#8220;Unpaywall&#8221; &#8212; Open Economics Guide der ZBW\" data-secret=\"qrG9MMftvC\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\" class=\"wp-embedded-content\"><\/iframe><script>\n\/*! This file is auto-generated *\/\n!function(d,l){\"use strict\";l.querySelector&&d.addEventListener&&\"undefined\"!=typeof URL&&(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&&!\/[^a-zA-Z0-9]\/.test(t.secret)){for(var s,r,n,a=l.querySelectorAll('iframe[data-secret=\"'+t.secret+'\"]'),o=l.querySelectorAll('blockquote[data-secret=\"'+t.secret+'\"]'),c=new RegExp(\"^https?:$\",\"i\"),i=0;i<o.length;i++)o[i].style.display=\"none\";for(i=0;i<a.length;i++)s=a[i],e.source===s.contentWindow&&(s.removeAttribute(\"style\"),\"height\"===t.message?(1e3<(r=parseInt(t.value,10))?r=1e3:~~r<200&&(r=200),s.height=r):\"link\"===t.message&&(r=new URL(s.getAttribute(\"src\")),n=new URL(t.value),c.test(n.protocol))&&n.host===r.host&&l.activeElement===s&&(d.top.location.href=t.value))}},d.addEventListener(\"message\",d.wp.receiveEmbedMessage,!1),l.addEventListener(\"DOMContentLoaded\",function(){for(var e,t,s=l.querySelectorAll(\"iframe.wp-embedded-content\"),r=0;r<s.length;r++)(t=(e=s[r]).getAttribute(\"data-secret\"))||(t=Math.random().toString(36).substring(2,12),e.src+=\"#?secret=\"+t,e.setAttribute(\"data-secret\",t)),e.contentWindow.postMessage({message:\"ready\",secret:t},\"*\")},!1)))}(window,document);\n\/\/# sourceURL=https:\/\/openeconomics.zbw.eu\/wp-includes\/js\/wp-embed.min.js\n<\/script>\n","description":"[vc_row el_class=\"oeg-kbentry oeg-kbentry-tool\"][vc_column width=\"2\/5\" el_class=\"oeg-kbentry-sidebar-box\"][vc_widget_sidebar sidebar_id=\"knowledgebasesidebartools\" el_class=\"oeg-kbentry-sidebar\"][\/vc_column][vc_column width=\"3\/5\" el_class=\"oeg-kbentry-content-box\"][vc_column_text el_class=\"oeg-kbentry-content-title\"] [\/vc_column_text][vc_column_text el_class=\"oeg-kbentry-content\"] Unpaywall ist eine offene Datenbank in der rund 32 Millionen kostenlos zug\u00e4ngliche Texte erfasst sind. Mit Hilfe einer Browser-Extension f\u00fcr Chrome bietet es einen einfachen und legalen Zugriff auf die Open-Access-Texte zum Download an. Die Open-Access-Texte sp\u00fcrt Unpaywall auf Basis des DOI auf. Die Daten, die zum Auffinden der Open-Access-Texte dienen, stammen unter anderem aus Crossref und dem Directory of Open Access Journals (DOAJ). Der gr\u00f6\u00dfte Teil der Daten stammt jedoch daher, dass Unpaywall selbst mehr als 50.000 Speicherorte im Netz beobachtet. Dazu z\u00e4hlen Gold OA Journals, Hybride [&hellip;]","thumbnail_url":"https:\/\/openeconomics.zbw.eu\/wp-content\/uploads\/2021\/07\/open-economics-guide-social.png","thumbnail_width":800,"thumbnail_height":420}