TY  - JOUR
AU  - V. M. Deundyak
AU  - I. B. Simonenko
AU  - Chin' Ngok Min'
TI  - Symbols and a~homotopy classification of families of one-dimensional singular operators with piecewise-continuous coefficients
JO  - Izvestiâ vysših učebnyh zavedenij. Matematika
PY  - 1988
SP  - 17
EP  - 27
IS  - 12
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/IVM_1988_12_a2/
LA  - ru
ID  - IVM_1988_12_a2
ER  -