Matsuura, Kenji (2002). "Colony-level stabilization of soldier head width for head-plug defense in the termite Reticulitermes speratus (Isoptera: Rhinotermitidae)". Behavioral Ecology and Sociobiology. 51 (2): 172–179. doi:10.1007/s00265-001-0426-2.
:Goyens J, Van Wassenbergh
S, Dirckx J, Aerts P. 2015 Cost of flight and the
evolution of stag beetle weaponry. J. R. Soc.
Interface 12: 20150222.
http://dx.doi.org/10.1098/rsif.2015.0222