@article{10_21136_CPM_1966_117580,
     author = {Mi\v{s}{\'\i}k, Ladislav},
     title = {\"Uber die {Klasse} ${\cal M}_2$},
     journal = {\v{C}asopis pro p\v{e}stov\'an{\'\i} matematiky},
     pages = {389--393},
     year = {1966},
     volume = {91},
     number = {4},
     doi = {10.21136/CPM.1966.117580},
     mrnumber = {0231950},
     zbl = {0156.06402},
     language = {de},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CPM.1966.117580/}
}