@article{10_21136_CPM_1963_108740,
     author = {Havel, V\'aclav},
     title = {Ke geometrii \v{c}tvrt\'eho harmonick\'eho bodu},
     journal = {\v{C}asopis pro p\v{e}stov\'an{\'\i} matematiky},
     pages = {243--246},
     publisher = {mathdoc},
     volume = {088},
     number = {2},
     year = {1963},
     doi = {10.21136/CPM.1963.108740},
     language = {cs},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CPM.1963.108740/}
}