File:Grasso, D.A., Romani, R. et al. 2004. Mandible associated glands in queens of the slave-making ant Polyergus rufescens (10.1007@s00040-003-0700-6).pdf

Summary
Grasso, D.A., Romani, R., Castracani, C., Visicchio, R., Mori, A., Isidoro, N., Le Moli, F. 2004. Mandible associated glands in queens of the slave-making ant Polyergus rufescens (Hymenoptera, Formicidae). Insectes Sociaux 51, 74–80.