P.  Volf and erný, V. ?., ?A second finding of Linognathoides laeviusculus (Grube) (Anoplura) in Rumania?, Folia Parasitologica (Praha), vol. 36, no. 3, p. 208, 1989.

P.  Volf, Grubhoffer, L., and Matha, V., ?Antigenic characterization of rat louse Polyplax spinulosa?, Folia Parasitologica (Praha), vol. 37, no. 3, pp. 275 - 278, 1990.

P.  Volf, ?Polyplax spinulosa infestation and antibody response in various strains of laboratory rats?, Folia Parasitologica (Praha), vol. 38, no. 4, pp. 355 - 362, 1991.

P.  Volf and Grubhoffer, L., ?Isolation and characterization of an immunogen from the louse Polyplax spinulosa?, Veterinary parasitology, vol. 38, no. 2-3, pp. 225 - 234, 1991.

J.  Uhlir and Volf, P., ?Ivermectin: its effect on the immune system of rabbits and rats infested with ectoparasites?, Veterinary immunology and immunopathology, vol. 34, no. 3-4, pp. 325 - 336, 1992.

P.  Volf, ?Localization of the major immunogen and other glycoproteins of the louse Polyplax spinulosa?, International Journal for Parasitology, vol. 24, no. 7, pp. 1005 - 1010, 1994.

P.  Volf, ?Postembryonal development of mycetocytes and symbionts of the spiny rat louse Polyplax spinulosa?, Journal of Invertebrate Pathology, vol. 58, no. 1, pp. 143 - 146, 1991.