TY  - JOUR
AU  - E. F. Lelikova
TI  - The method of matching asymptotic expansions for the equation $\varepsilon\Delta u-au_z=f$ in a parallelepiped
JO  - Differencialʹnye uravneniâ
PY  - 1978
SP  - 1638
EP  - 1648
VL  - 14
IS  - 9
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1978_14_9_a12/
LA  - ru
ID  - DE_1978_14_9_a12
ER  -