Profiles of the body-surface proteolytic system of honey bee queens, workers and drones: Ontogenetic and seasonal changes in proteases and their natural inhibitors Krzysztof Grzywnowicz, Aneta Ciołek, Agnieszka Tabor and Magdalena JaszekApidologie, 40 1 (2009) 4-19DOI: https://doi.org/10.1051/apido:2008057