@article{RMF_2014_89_1_a0,
     author = {Calda, Emil},
     title = {Po\v{c}et obd\'eln{\'\i}k\r{u} zakr\'yvaj{\'\i}c{\'\i}ch dan\'e pol{\'\i}\v{c}ko \v{c}tvercov\'e s{\'\i}t\v{e}},
     journal = {Rozhledy matematicko-fyzik\'aln{\'\i}},
     pages = {1--4},
     year = {2014},
     volume = {89},
     number = {1},
     language = {cs},
     url = {http://geodesic.mathdoc.fr/item/RMF_2014_89_1_a0/}
}