TY  - JOUR
AU  - Mariya N. Kuznetsova
AU  - Asli Pekcan
AU  - Anatoliy V. Zhiber
TI  - The Klein–Gordon Equation and Differential Substitutions of the Form $v=\varphi(u,u_x,u_y)$
JO  - Symmetry, integrability and geometry: methods and applications
PY  - 2012
VL  - 8
UR  - http://geodesic.mathdoc.fr/item/SIGMA_2012_8_a89/
LA  - en
ID  - SIGMA_2012_8_a89
ER  -