@article {12177,
	title = {Zur Biologie von Leptinus testaceus M{\"u}ll. Phoresie oder Ektoparasitismus ? Neue Beobachtungen},
	journal = {ZWib},
	volume = {19},
	year = {1914},
	pages = {139-144.},
	author = {R{\"u}schkamp, F.}
}
@article {12109,
	title = {Zur Biologie der Leptinidae. Ins. Coleopt. Leptinus testaceus M{\"u}ll., der {\textquoteleft}{\textquoteleft}M{\"a}usefloh{\textquoteright}},
	journal = {TJde},
	volume = {64},
	year = {1921},
	pages = {161-174.},
	author = {R{\"u}schkamp, F.}
}
@article {11993,
	title = {Unsere heimischen Anisotomini (Agathidiini)},
	journal = {EBlt},
	volume = {24},
	number = {1},
	year = {1928},
	pages = {27-30.},
	author = {R{\"u}schkamp, F.}
}
@article {11981,
	title = {Zur Rheinischen K{\"a}ferfauna VIII},
	journal = {EBlt},
	volume = {26},
	number = {2},
	year = {1930},
	pages = {57-67.},
	author = {R{\"u}schkamp, F.}
}
