共 4 条
[2]
Protter Murray H., 1984, MAXIMUM PRINCIPLES D, DOI [10.1007/978-1-4612-5282-5, DOI 10.1007/978-1-4612-5282-5]
[3]
SERRIN J, 1971, ARCH RATIONAL MECH A, V43, P304
[4]
WEINBERGER HF, 1971, ARCH RATION MECH AN, V43, P319