Some properties of the solutions of wave equations
1989 ◽
Vol 62
(19)
◽
pp. 2201-2204
◽
1980 ◽
Vol 36
(1)
◽
pp. 20-27
◽
Keyword(s):
Keyword(s):
2008 ◽
Vol 90
(4)
◽
pp. 387-411
◽
1969 ◽
Vol 23
(2)
◽
pp. 359-359
◽
2018 ◽
pp. 291-296
1976 ◽
Vol 22
(3)
◽
pp. 305-311
◽