共 9 条
[1]
BESPALOV VI, 1966, JETP LETT-USSR, V3, P307
[3]
Coddington E. A., 1955, THEORY ORDINARY DIFF
[8]
Lighthill MJ, 1965, J I MATH APPL, V1, P269, DOI [DOI 10.1093/IMAMAT/1.3.269, 10.1093/imamat/1.3.269]
[9]
ZAKHAROV VE, 1972, SOV PHYS JETP-USSR, V34, P62