Some Considerations on a Nonlinear Field Theory
1959 ◽
Vol 9
◽
pp. 5-18
◽
1982 ◽
Vol 32
(6)
◽
pp. 664-667
◽
Keyword(s):
1980 ◽
Vol 18
(6)
◽
pp. 1491-1503
2004 ◽
Vol 100
(4)
◽
pp. 442-447
◽