{"version":"1.0","provider_name":"Open Economics Guide of the ZBW","provider_url":"https:\/\/openeconomics.zbw.eu\/en\/","author_name":"osguide","author_url":"https:\/\/openeconomics.zbw.eu\/en\/author\/osguide\/","title":"Open Access Helper (OAHelper) &#8211; Open Economics Guide of the ZBW","type":"rich","width":600,"height":338,"html":"<blockquote class=\"wp-embedded-content\" data-secret=\"5RJjnFK3b2\"><a href=\"https:\/\/openeconomics.zbw.eu\/en\/knowledgebase\/open-access-helper-oahelper\/\">Open Access Helper (OAHelper)<\/a><\/blockquote><iframe sandbox=\"allow-scripts\" security=\"restricted\" src=\"https:\/\/openeconomics.zbw.eu\/en\/knowledgebase\/open-access-helper-oahelper\/embed\/#?secret=5RJjnFK3b2\" width=\"600\" height=\"338\" title=\"&#8220;Open Access Helper (OAHelper)&#8221; &#8212; Open Economics Guide of the ZBW\" data-secret=\"5RJjnFK3b2\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\" class=\"wp-embedded-content\"><\/iframe><script type=\"text\/javascript\">\n\/* <![CDATA[ *\/\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\/* ]]> *\/\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=\"knowledgebasesidebartoolsen\" 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 css=\"\" el_class=\"oeg-kbentry-content\"] Open Access Helper (OAHelper) helps you to find legal Open Access copies of scientific publications. It is intended to combat the problem that although there are more than 50 million Open Access versions of scientific articles hiding behind paywalls, these are difficult to find. The Open Access Helper exists in various versions, as a mobile app as well as a desktop version and as a browser extension for Chrome, Edge,\u00a0Safari and Firefox. The Open Access Helper is based on the data from: Unpaywall, CORE,\u00a0OpenAlex, OpenCitations.net, europepmc.org and [&hellip;]","thumbnail_url":"https:\/\/openeconomics.zbw.eu\/wp-content\/uploads\/2021\/07\/open-economics-guide-social.png","thumbnail_width":800,"thumbnail_height":420}