@article{1103841307, author = {Knops, H. J. F.}, title = {Properties of crystal states}, journal = {Comm. Math. Phys.}, volume = {12}, number = {1}, year = {1969}, pages = { 36-42}, language = {en}, url = {http://dml.mathdoc.fr/item/1103841307} }
Knops, H. J. F. Properties of crystal states. Comm. Math. Phys., Tome 12 (1969) no. 1, pp. 36-42. http://gdmltest.u-ga.fr/item/1103841307/