TY  - BOOK
AU  - Tikhonov,A.N & Goncharsky,A.V (eds)
ED  - Goncharsky, A.V
TI  - Ill-posed problems in the natural sciences
T2  - Advances in science & technology in the USSR
U1  - 14.04+14.07+14.08 
PY  - 1987///
CY  - Moscow
PB  - MIR Publishers
ER  -