Bel, Y., Porcar, M., Socha, R., Němec, V., Ferré, J. Analysis of pteridines in Pyrrhocoris apterus (L.)(Heteroptera, Pyrrhocoridae) during development and in body color mutants. Insect Biochemistry and Molecular Biology. 1997, 34(-), 83-98. ISSN 0965-1748. E-ISSN 1879-0240.