environmentalists 7 [vynechat] ochrancovia prírody 6 [vynechat] nature conservation 2 [vynechat] ochrana prírody 2 [vynechat] ochráncovia prírody 2 [vynechat] Czechs 1 [vynechat] architekti 1 [vynechat] caves 1 [vynechat] celebrities 1 [vynechat] cestovatelia 1 [vynechat] chemici 1 [vynechat] chemists 1 [vynechat] chránené územia 1 [vynechat] cultural activities 1 [vynechat] culture and society 1 [vynechat] dejiny ochrany prírody 1 [vynechat] environmental protection 1 [vynechat] foresters 1 [vynechat] herpetologists 1 [vynechat] herpetológovia 1 [vynechat] hikers 1 [vynechat] history of nature conservation 1 [vynechat] jaskyne 1 [vynechat] kultúra a spoločnosť 1 [vynechat] kultúrne podujatia 1 [vynechat] lesníci 1 [vynechat] man and environment 1 [vynechat] nature 1 [vynechat] ochrana životného prostredia 1 [vynechat] osobnosti 1 [vynechat]