@article{1183500141, author = {Latshaw, V. V.}, title = {On fourth order self-adjoint difference systems}, journal = {Bull. Amer. Math. Soc.}, volume = {43}, number = {12}, year = {1937}, pages = { 851-855}, language = {en}, url = {http://dml.mathdoc.fr/item/1183500141} }
Latshaw, V. V. On fourth order self-adjoint difference systems. Bull. Amer. Math. Soc., Tome 43 (1937) no. 12, pp. 851-855. http://gdmltest.u-ga.fr/item/1183500141/