Proteins in spermathecal gland secretion and spermathecal fluid and the properties of a 29 kDa protein in queens of Apis mellifera Michael Klenk, Gudrun Koeniger, Nikolaus Koeniger and Hugo FasoldApidologie, 35 4 (2004) 371-381DOI: https://doi.org/10.1051/apido:2004029