@article {1056,
	title = {Zur Biologie des Biberk{\"a}fers Platypsyllus castoris Ritsema},
	journal = {BTre},
	volume = {9},
	number = {5-jun},
	year = {1959},
	pages = {523-528.},
	author = {R. Piechocki}
}
@article {573,
	title = {Morphologische und histologische Untersuchungen an den Larvenstadien von Platypsyllus castoris Ritsema (Coleoptera, Leptinidae)},
	journal = {EAbd},
	volume = {49},
	number = {2},
	year = {1985},
	pages = {27-34.},
	author = {Neumann, V. and R. Piechocki}
}
