<div dir="ltr"><div><a href="https://collec.repec.org/Betweenness.csv">https://collec.repec.org/Betweenness.csv</a> and <a href="https://collec.repec.org/Closeness.csv">https://collec.repec.org/Closeness.csv</a> are not available.<br></div><div><div dir="ltr" class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><div><br></div><div>Christian Zimmermann</div><div><a href="https://ideas.repec.org/zimm/" target="_blank">https://ideas.repec.org/zimm/</a><br></div></div></div></div></div>