Reference

Peter Glöer (2002): Bithynia leachii troschelii (Paasch 1842) - die oestliche Rasse von B. leachii (Sheppard 1823) (Gastropoda: Orthogastropoda: Bithyniidae). – Arch. Molluskenk. – 130(1-2: 259 - 265.