Autore:Alois Mrázek

- ↑ 1,0 1,1 Authority file della Biblioteca Nazionale Ceca
- ↑ 2,0 2,1 The Fine Art Archive
- ↑ 3,0 3,1 Regional Database of the Central Bohemian Research Library in Kladno
- ↑ Collection of Registry Books at Prague City Archives
Mrázek XIX secolo/XX secolo zoologo ceco