%0 Journal Article %A Lowndes, J. S. %T On some solutions of second order hyperbolic differential equations with constant coefficients %J Glasgow mathematical journal %D 1987 %P 69-72 %V 29 %N 1 %U http://geodesic.mathdoc.fr/articles/10.1017/S0017089500006674/ %R 10.1017/S0017089500006674 %F 10_1017_S0017089500006674