On the necessary condition of Weierstrass in the multiple integral problem of the calculus of variations III
1967 ◽
Vol 16
(3)
◽
pp. 321-345
1948 ◽
Vol 63
(3)
◽
pp. 439-439
◽
Keyword(s):
1933 ◽
Vol 29
(2)
◽
pp. 207-211
Keyword(s):