1. Vulkanické série a Friedrich Johann Karl Becke: *31. 12. 1855 Praha, †18. 6. 1931 Vídeň Creator: Ulrych, Jaromír, Hammer, Vera, and Pertlik, Franz Type: article, model:article, and TEXT Language: Czech Rights: http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public