共 32 条
[4]
Constantin A, 1998, COMMUN PUR APPL MATH, V51, P475, DOI 10.1002/(SICI)1097-0312(199805)51:5<475::AID-CPA2>3.0.CO
[5]
2-5
[8]
Constantin A, 1998, INDIANA U MATH J, V47, P1527