@article{1103840281, author = {L\'evy-Leblond, Jean-Marc}, title = {Nonrelativistic particles and wave equations}, journal = {Comm. Math. Phys.}, volume = {4}, number = {1}, year = {1967}, pages = { 286-311}, language = {en}, url = {http://dml.mathdoc.fr/item/1103840281} }
Lévy-Leblond, Jean-Marc. Nonrelativistic particles and wave equations. Comm. Math. Phys., Tome 4 (1967) no. 1, pp. 286-311. http://gdmltest.u-ga.fr/item/1103840281/