@article{RSMUP_2002__107__209_0,
     author = {Bratti, Giuliano and Takagi, Masako},
     title = {Differential equations and maximal ideals on the {Weyl} algebra $A_2(\mathbb {C})$},
     journal = {Rendiconti del Seminario Matematico della Universit\`a di Padova},
     pages = {209--223},
     publisher = {Seminario Matematico of the University of Padua},
     volume = {107},
     year = {2002},
     mrnumber = {1926212},
     zbl = {1149.16302},
     language = {en},
     url = {http://www.numdam.org/item/RSMUP_2002__107__209_0/}
}