@article {456,
	title = {Arion wiktori sp. n. from the Iberian Peninsula (Gastropoda, Pulmonata: Arionidae)},
	journal = {Malakologische Abhandlungen},
	volume = {15},
	year = {1990},
	pages = {25-35},
	author = {Parejo, C and Mart{\'{\i}n, R}
}
@article {215,
	title = {Morphological comparisons of the species of Megapallifera (Gastropoda: Pulmonata).},
	journal = {The Nautilus},
	volume = {104},
	year = {1990},
	pages = {71-75},
	author = {Fairbanks, HL}
}
