@article{10_4064_ap_21_1_97_101,
     author = {W. Benz},
     title = {Die {4-Punkt-Invarianten} in der projektiven {Geraden} \"uber einem {Schiefk\"orper}},
     journal = {Annales Polonici Mathematici},
     pages = {97--101},
     publisher = {mathdoc},
     volume = {21},
     number = {1},
     year = {1968},
     doi = {10.4064/ap-21-1-97-101},
     language = {de},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/ap-21-1-97-101/}
}