@article{10_1017_S001708950500248X,
     author = {LEQUAIN, YVES and LEVCOVITZ, DANIEL and SOUZA, JOS\'E CARLOS DE},
     title = {D-SIMPLE {RINGS} {AND} {PRINCIPAL} {MAXIMAL} {IDEALS} {OF} {THE} {WEYL} {ALGEBRA}},
     journal = {Glasgow mathematical journal},
     pages = {269--285},
     year = {2005},
     volume = {47},
     number = {2},
     doi = {10.1017/S001708950500248X},
     url = {http://geodesic.mathdoc.fr/articles/10.1017/S001708950500248X/}
}