@article{RMF_2012_87_1_a2,
     author = {Volf, Ivo},
     title = {Nebezpe\v{c}n\'e zimn{\'\i} sporty},
     journal = {Rozhledy matematicko-fyzik\'aln{\'\i}},
     pages = {14--21},
     year = {2012},
     volume = {87},
     number = {1},
     language = {cs},
     url = {http://geodesic.mathdoc.fr/item/RMF_2012_87_1_a2/}
}