@article{BAG_1981__11_138201,
     author = {W. MAHRHOLD and K. ROSENBAUM},
     title = {Involutionen in halbeinfachen {Algebren}},
     journal = {Beitr\"age zur Algebra und Geometrie},
     pages = {133--144},
     year = {1981},
     volume = {11},
     zbl = {0475.16008},
     url = {http://geodesic.mathdoc.fr/item/BAG_1981__11_138201/}
}