Vojtkova L., Roca V. . 1996 .
Parasites of the frogs and toads in Europe. Part 3: Nematoda, Cestoda, Acanthocephala, Hirudinea, Crustacea and Insecta
.
Revista Española de Herpetología
,
10
:
13-27
Weisshaupt N . 2007 .
Habitat selection by foraging wrynecks Jynx torquilla during the breeding season: identifying optimal species habitat
.
Masterarbeit. Philosophisch-naturwissenschaftliche
.
Fakultät der Universität Bern
Werner Y.L. . 1986 .
Evolutionary implication of occasional (non-mimetic) behavioural triangulation of the head in snakes (Coluber rhodorhachis and Malpolon monspessulanus)
.
The Snake
,
18
:
37-41
Wiktander U, Nilsson SG, Olsson O, Stagen A . 1994 .
Breeding success of a lesser spotted woodpecker Dendrocopos minor population
.
Ibis
,
136
:
318–322
Wiktander U, Olsson O, Nilsson SG . 1991 .
Annual and seasonal reproductive trends in the lesser spotted woodpecker Dendrocopos minor
.
Ibis
,
143
:
72–82
Wilson, D. E., Reeder, D. M. . 1993 .
Mammal species of the world. A taxonomic and geographic reference
.
Second edition. Smithsonian Institution Press
.
Washington