People Czech Republic Josef Zelenka peoplepill id: josef-zelenka-7JZ 6 views today 6 views this weekCzech naturalistJosef ZelenkaBiographyListsAlso ViewedSimilar peoplePeople also viewedPavel HubenýCzech manager and naturescientistJosef ElsterResearcherJaroslav ObermajerCzech naturalistJan MoravecFrom our partnersSponsoredJosef Zelenka