File:South Bohemian Region (CZE) - location map.svg - Wikimedia Commons
PPT - Afrika II PowerPoint Presentation, free download - ID:4700166
MAPA -TŘEBOŇSKÁ RYBNIČNÁ PÁNEV | Aukro
PDF] First records of Viviparus acerosus (Bourguignat, 1862) (Gastropoda: Viviparidae) from the Czech Republic outside its native range | Semantic Scholar