@article{MZ_1961__76_169956,
     author = {Johannes Andr\'e},
     title = {\"Uber {Parallelstrukturen.} {Teil} {III:} {Zentrale} {t-Strukturen.}},
     journal = {Mathematische Zeitschrift},
     pages = {240--256},
     publisher = {mathdoc},
     volume = {76},
     year = {1961},
     zbl = {0099.15401},
     url = {http://geodesic.mathdoc.fr/item/MZ_1961__76_169956/}
}