Conditional invariance of the nonlinear wave equation
1991 ◽
Vol 43
(3)
◽
pp. 359-364
◽
1991 ◽
Vol 43
(4)
◽
pp. 359-364
◽
Keyword(s):
Keyword(s):
Keyword(s):
Keyword(s):
2010 ◽
Vol 249
(11)
◽
pp. 2796-2821
◽