Effect of Varroa jacobsoni parasitization in the glycoprotein expression on Apis mellifera spermatozoa E. Del Cacho, J.I. Marti, A. Josa, J. Quílez and C. Sánchez-Acedo Apidologie, 27 2 (1996) 87-92 DOI: 10.1051/apido:19960203