nákladná vodná doprava dejiny 1 [vynechat] dejiny dopravy 1 [vynechat] freight water transport 1 [vynechat] history 1 [vynechat] history of transportation 1 [vynechat] monografie 1 [vynechat] plachetnice 1 [vynechat] pltníci 1 [vynechat] pĺtnictvo 1 [vynechat] raft navigation 1 [vynechat] raftsmen 1 [vynechat]