共 10 条
[3]
Hardy G. H., 1952, MATH GAZ
[4]
KURTZ J, ROCKY MTN J MATH
[6]
Nehari Z., 1963, P ROY IRISH ACAD A, V62, P117
[9]
Wong P. K., 1969, ANN MAT PUR APPL, V81, P331, DOI [10.1007/BF02413508, DOI 10.1007/BF02413508]
[10]
Zakharov V. E., 1971, Zhurnal Eksperimental'noi i Teoreticheskoi Fiziki, V60, P136