@article{10_21136_CPM_1983_108412,
     author = {Machala, Franti\v{s}ek},
     title = {\"Uber {Ordnungsverh\"altnisse} auf affinen {Ebenen}},
     journal = {\v{C}asopis pro p\v{e}stov\'an{\'\i} matematiky},
     pages = {191--198},
     year = {1983},
     volume = {108},
     number = {2},
     doi = {10.21136/CPM.1983.108412},
     mrnumber = {704064},
     zbl = {0527.51003},
     language = {de},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CPM.1983.108412/}
}