@article{10_21136_CPM_1990_118412,
     author = {Pech, Pavel},
     title = {Inequality between sides and diagonals of a space $n$-gon and its integral analog},
     journal = {\v{C}asopis pro p\v{e}stov\'an{\'\i} matematiky},
     pages = {343--350},
     publisher = {mathdoc},
     volume = {115},
     number = {4},
     year = {1990},
     doi = {10.21136/CPM.1990.118412},
     mrnumber = {1090858},
     zbl = {0722.52006},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CPM.1990.118412/}
}