TY - JOUR A1 - Bienefeld, Kaspar A1 - Zautke, Fred A1 - Gupta, Pooja T1 - A novel method for undisturbed long-term observation of the honey bee (Apis mellifera) behaviour – illustrated by the hygienic behaviour towards Varroa infestation T2 - Journal of Apicultural Research Y1 - 2016 UR - https://opus4.kobv.de/opus4-zib/frontdoor/index/index/docId/5835 VL - 54(5) SP - 541 EP - 547 ER -