([Agroscope, Zementhonig im Honig- und Brutraum - was dann?, 1985, S. 1, Internet](http://www.google.ch/url?sa=t&rct=j&q=&esrc=s&frm=1&source=web&cd=7&cad=rja&uact=8&ved=0CEgQFjAG&url=http%3A%2F%2Fwww.agroscope.admin.ch%2Fimkerei%2F00302%2F00307%2Findex.html%3Flang%3Dde%26download%3DNHzLpZeg7t%2Clnp6I0NTU042l2Z6ln1acy4Zn4Z2qZpnO2Yuq2Z6gpJCDeHt4fWym162epYbg2c_JjKbNoKSn6A--&ei=CsDYVMqhGoKrUZLhgvgC&usg=AFQjCNFBfO0N1uKdzKvaa_94HZzHvjBl3w&sig2=-kBiBqj7m5LtzO2slkHe-A&bvm=bv.85464276,d.d24))