@article{MAN_1973__200_162364,
     author = {F. Ischebeck and W. Scharlau},
     title = {Hermitesche und orthogonale {Operatoren} \"uber kommutativen {Ringen.}},
     journal = {Mathematische Annalen},
     pages = {327--334},
     publisher = {mathdoc},
     volume = {200},
     year = {1973},
     zbl = {0265.18010},
     url = {http://geodesic.mathdoc.fr/item/MAN_1973__200_162364/}
}