@article{RMF_2010_85_2_a7,
     author = {Calda, Emil},
     title = {N\v{e}kolik jednoduch\'ych \'uloh vyu\v{z}{\'\i}vaj{\'\i}c{\'\i}ch obarven{\'\i}},
     journal = {Rozhledy matematicko-fyzik\'aln{\'\i}},
     pages = {49--52},
     year = {2010},
     volume = {85},
     number = {2},
     language = {cs},
     url = {http://geodesic.mathdoc.fr/item/RMF_2010_85_2_a7/}
}