TY  - JOUR
AU  - A. V. Skvortsov
TI  - An algorithm for constructing the union, intersection and difference of

JO  - Numerical methods and programming
PY  - 2002
SP  - 116
EP  - 123
VL  - 3
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/VMP_2002_3_1_a7/
LA  - ru
ID  - VMP_2002_3_1_a7
ER  -