TY  - JOUR
AU  - GAN, ZAIHUI
AU  - ZHANG, JIAN
TI  - CROSS-CONSTRAINED VARIATIONAL PROBLEM AND THE NON-LINEAR KLEIN–GORDON EQUATIONS*
JO  - Glasgow mathematical journal
PY  - 2008
SP  - 467
EP  - 481
VL  - 50
IS  - 3
UR  - http://geodesic.mathdoc.fr/articles/10.1017/S0017089508004345/
DO  - 10.1017/S0017089508004345
ID  - 10_1017_S0017089508004345
ER  -