TY  - JOUR
AU  - O. Ya. Viro
TI  - Positioning in codimension 2, and the boundary
JO  - Trudy Matematicheskogo Instituta imeni V.A. Steklova
PY  - 1975
VL  - 30
IS  - 1
UR  - http://geodesic.mathdoc.fr/item/RM_1975_30_1_a12/
LA  - ru
ID  - RM_1975_30_1_a12
ER  -