@article{700908,
     title = {On division problems for partial differential equations with constant coefficients},
     booktitle = {General Topology and its Relations to Modern Analysis and Algebra},
     series = {GDML\_Books},
     publisher = {Academia Publishing House of the Czechoslovak Academy of Sciences},
     address = {Praha},
     year = {1962},
     pages = {[316]-321},
     mrnumber = {MR0155076},
     zbl = {0119.08201},
     url = {http://dml.mathdoc.fr/item/700908}
}

Shirota, T. On division problems for partial differential equations with constant coefficients, dans General Topology and its Relations to Modern Analysis and Algebra, GDML_Books,  (1962), pp. [316]-321. http://gdmltest.u-ga.fr/item/700908/