Updated refs

refs.html

@@ -24,7 +24,7 @@ <h2> Documentation and reviews </h2>
 while the <a href="data/ceri15ias_juelich-pimd.pdf">lecture notes</a> for the 
 <a href="http://www.fz-juelich.de/conferences/STL-2015/EN/Home/home_node.html" target="_blank">2015 Juelich school</a> give
 a discussion specific to the simulation of nuclear quantum effects.
-The <a href="https://lab-cosmo.github.io/atomistic-cookbook/" target="_blank">atomistic cookbook</a> contains several recipes using GLE thermostats, especially for use in path integral molecular dynamics.
+The <a href="https://atomistic-cookbook.org" target="_blank">atomistic cookbook</a> contains several recipes using GLE thermostats, especially for use in path integral molecular dynamics.
 </p>
 <p>
 See also the <a href="index.html?page=docs">FAQ</a>