TY  - JOUR
AU  - Isaac I. Vainshtein
TI  - Model problems for two nonlinear equations that type depends on the solution
JO  - Žurnal Sibirskogo federalʹnogo universiteta. Matematika i fizika
PY  - 2013
SP  - 539
EP  - 547
VL  - 6
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/JSFU_2013_6_4_a14/
LA  - en
ID  - JSFU_2013_6_4_a14
ER  -