%0 Journal Article %A Pl. Muthuramalingam %T A Note on Time Dependent Scattering Theory for P2 - P2 + (1 + |Q|) - 1 ... and P1 P2 + (1 + |Q|) - 1 - ... on L2 (R2). %J Mathematische Zeitschrift %D 1984 %P 339-348 %V 188 %I mathdoc %U http://geodesic.mathdoc.fr/item/MZ_1984__188_173543/ %F MZ_1984__188_173543