TY  - JOUR
AU  - R. I. Bogdanov
TI  - Invariants of elementary singular points in a~plane
JO  - Trudy Matematicheskogo Instituta imeni V.A. Steklova
PY  - 1985
SP  - 227
EP  - 228
VL  - 40
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/RM_1985_40_3_a9/
LA  - en
ID  - RM_1985_40_3_a9
ER  -