Order of the Government of the Czech Socialist Republic No. 85 / 1981 Coll.

Ordinance of the Government of the Czech Socialist Republic on the Protected Areas of Natural Water Accumulation of the Cheb Pans and Slavkovsky Forest, North Bohemian Cretaceous, East Bohemian Cretaceous, Polish Pane, Třeboňská Pane and the Quartera of the River Moravia