@article{CM_1936__3__373_0,
     author = {Grosheide F. Wzn., G. H. A.},
     title = {\"Uber Differentialoperatoren, Minimalpolynome und Differentialgleichungen},
     journal = {Compositio Mathematica},
     pages = {373--379},
     publisher = {Johnson Reprint Corporation},
     volume = {3},
     year = {1936},
     zbl = {0015.15801},
     language = {de},
     url = {www.numdam.org/item/CM_1936__3__373_0/}
}

Grosheide F. Wzn., G. H. A. Über Differentialoperatoren, Minimalpolynome und Differentialgleichungen. Compositio Mathematica, Tome 3 (1936) , pp. 373-379. http://www.numdam.org/item/CM_1936__3__373_0/