. "1/1980\u00A0Sb." . "Vyhl\u00E1\u0161ka feder\u00E1ln\u00EDho ministerstva dopravy, kterou se vyd\u00E1vaj\u00ED z\u00E1kladn\u00ED podm\u00EDnky dod\u00E1vky leteck\u00FDch prac\u00ED v zem\u011Bd\u011Blstv\u00ED, lesn\u00EDm a vodn\u00EDm hospod\u00E1\u0159stv\u00ED"@cs . .