@article{AFM_1967_391-410_a19,
     author = {Harri Rikkonen},
     title = {Zur {Theorie} der symmetrischen {Bilinearabbildungen}},
     journal = {Annales Fennici Mathematici},
     publisher = {mathdoc},
     volume = {391-410},
     year = {1967},
     doi = {10.5186/aasfm.1967.391},
     language = {de},
     url = {http://geodesic.mathdoc.fr/articles/10.5186/aasfm.1967.391/}
}