@article{CMH_1970__45_139425,
     author = {Hanspeter Kraft},
     title = {Inseparable {K\"orpererweiterungen.}},
     journal = {Commentarii mathematici Helvetici},
     pages = {110--118},
     publisher = {mathdoc},
     volume = {45},
     year = {1970},
     url = {http://geodesic.mathdoc.fr/item/CMH_1970__45_139425/}
}