@article{ARM_1971_7_1_a0,
     author = {Barv{\'\i}nek, Erich},
     title = {Fundamental central dispersion in a simple system},
     journal = {Archivum mathematicum},
     pages = {1--8},
     year = {1971},
     volume = {7},
     number = {1},
     mrnumber = {0303006},
     zbl = {0243.34115},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ARM_1971_7_1_a0/}
}