@article{MM2_1986__57_155201,
     author = {J.-P. Bezivin},
     title = {Une propriete arithmetique de certains operateurs differentiels.},
     journal = {Manuscripta mathematica},
     pages = {351--372},
     publisher = {mathdoc},
     volume = {57},
     year = {1986},
     zbl = {0602.12007},
     url = {http://geodesic.mathdoc.fr/item/MM2_1986__57_155201/}
}