@article{UM_1996_4_4_a3, author = {Hrub\'y, Dag}, title = {Troj\'uheln{\'\i}kov\'a nerovnost aneb no\v{s}en{\'\i} vody v konvi}, journal = {U\v{c}itel matematiky}, pages = {205--212}, year = {1996}, volume = {4}, number = {4}, language = {cs}, url = {http://geodesic.mathdoc.fr/item/UM_1996_4_4_a3/} }