<?xml version="1.0"?>
<oembed><version>1.0</version><provider_name>Uitgeverij Van Oorschot</provider_name><provider_url>https://www.vanoorschot.nl/en/</provider_url><author_name>joost</author_name><author_url>https://www.vanoorschot.nl/en/author/joost/</author_url><title>Rutger Kopland &#xB7; Uitgeverij Van Oorschot</title><type>rich</type><width>600</width><height>338</height><html>&lt;blockquote class="wp-embedded-content" data-secret="8IoEybyegF"&gt;&lt;a href="https://www.vanoorschot.nl/en/writers/r-kopland/"&gt;Rutger Kopland&lt;/a&gt;&lt;/blockquote&gt;&lt;iframe sandbox="allow-scripts" security="restricted" src="https://www.vanoorschot.nl/en/writers/r-kopland/embed/#?secret=8IoEybyegF" width="600" height="338" title="&#x201C;Rutger Kopland&#x201D; &#x2014; Uitgeverij Van Oorschot" data-secret="8IoEybyegF" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"&gt;&lt;/iframe&gt;&lt;script type="text/javascript"&gt;
/* &lt;![CDATA[ */
/*! This file is auto-generated */
!function(d,l){"use strict";l.querySelector&amp;&amp;d.addEventListener&amp;&amp;"undefined"!=typeof URL&amp;&amp;(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&amp;&amp;!/[^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&lt;o.length;i++)o[i].style.display="none";for(i=0;i&lt;a.length;i++)s=a[i],e.source===s.contentWindow&amp;&amp;(s.removeAttribute("style"),"height"===t.message?(1e3&lt;(r=parseInt(t.value,10))?r=1e3:~~r&lt;200&amp;&amp;(r=200),s.height=r):"link"===t.message&amp;&amp;(r=new URL(s.getAttribute("src")),n=new URL(t.value),c.test(n.protocol))&amp;&amp;n.host===r.host&amp;&amp;l.activeElement===s&amp;&amp;(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&lt;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);
//# sourceURL=https://www.vanoorschot.nl/wp-includes/js/wp-embed.min.js
/* ]]&gt; */
&lt;/script&gt;
</html><thumbnail_url>https://www.vanoorschot.nl/wp-content/uploads/2019/06/Kopland.jpg</thumbnail_url><thumbnail_width>177</thumbnail_width><thumbnail_height>263</thumbnail_height><description>Rutger Kopland (1934-2012) was de schrijversnaam van de psychiater R.H. van den Hoofdakker. Van den Hoofdakker was hoogleraar aan de Rijksuniversiteit Groningen. Als onderzoeker en behandelaar hield hij zich persoonlijk vooral bezig met de betekenis van de slaap en de biologische klok voor het emotionele leven van zowel gezonde als psychisch gestoorde mensen. Daarbij werkte...</description></oembed>

<!--
Performance optimized by W3 Total Cache. Learn more: https://www.boldgrid.com/w3-total-cache/

Page Caching using Disk: Enhanced (Requested URI contains query) 
Database Caching 111/137 queries in 0.027 seconds using Disk

Served from: www.vanoorschot.nl @ 2026-04-15 20:28:28 by W3 Total Cache
-->