@article{RMF_2011__86_4_a4,
     author = {Calda, Emil},
     title = {O jedn\'e geometrick\'e konstrukci},
     journal = {Rozhledy matematicko-fyzik\'aln{\'\i}},
     pages = {31--33},
     publisher = {mathdoc},
     volume = {86},
     number = {4},
     year = {2011},
     language = {cz},
     url = {http://geodesic.mathdoc.fr/item/RMF_2011__86_4_a4/}
}