Invariance groups and conservation laws in linear field theories
1974 ◽
Vol 15
(6)
◽
pp. 683-686
◽
1982 ◽
Vol 130
(1)
◽
pp. 177-195
◽
Keyword(s):
1996 ◽
Vol 11
(10)
◽
pp. 1831-1853
◽