@article{GDZPPN002549875, title = {Wave operators for pairs of spaces and the Klein-Gordon equation.}, journal = {Aequationes mathematicae}, volume = {20}, year = {1980}, pages = {38-50}, zbl = {0444.47016}, url = {http://dml.mathdoc.fr/item/GDZPPN002549875} }
Schechter, Martin. Wave operators for pairs of spaces and the Klein-Gordon equation.. Aequationes mathematicae, Tome 20 (1980) pp. 38-50. http://gdmltest.u-ga.fr/item/GDZPPN002549875/