@article{CLTM_1966_1966_1_a1,
     author = {Lesmes, Jaime},
     title = {\"Uber lineare partielle {Differential-Differenzenoperatoren} mit konstanten {Koeffizienten.}},
     journal = {Collectanea mathematica},
     publisher = {mathdoc},
     year = {1966},
     url = {http://geodesic.mathdoc.fr/item/CLTM_1966_1966_1_a1/}
}