@article{MZ_1970__114_171315,
     author = {Peter Hess},
     title = {\"Uber {Polynome} {J-symmetrischer} {Operatoren} in {J-R\"aumen.}},
     journal = {Mathematische Zeitschrift},
     pages = {271--277},
     year = {1970},
     volume = {114},
     language = {de},
     url = {http://geodesic.mathdoc.fr/item/MZ_1970__114_171315/}
}