TY  - JOUR
AU  - A. V. Bitsadze
AU  - N. P. Erugin
AU  - V. A. Il'in
AU  - A. A. Samarskii
TI  - Andre{\v\i} Nikolaevich Tikhonov (on the occasion of his eightieth birthday)
JO  - Differencialʹnye uravneniâ
PY  - 1986
SP  - 2027
EP  - 2031
VL  - 22
IS  - 12
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1986_22_12_a0/
LA  - ru
ID  - DE_1986_22_12_a0
ER  -