TY  - JOUR
AU  - N. P. Erugin
AU  - V. A. Il'in
AU  - A. A. Samarskii
AU  - A. G. Sveshnikov
TI  - Andre{\v\i} Nikolaevich Tikhonov (on the occasion of his seventy-fifth birthday)
JO  - Differencialʹnye uravneniâ
PY  - 1981
SP  - 1731
EP  - 1737
VL  - 17
IS  - 10
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1981_17_10_a0/
LA  - ru
ID  - DE_1981_17_10_a0
ER  -