TY  - JOUR
AU  - S. M. Markov
TI  - Extended Interval Arithmetic Involving Infinite Intervals
JO  - Mathematica balkanica
PY  - 1992
SP  - 269
VL  - 6
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MABA_1992_6_3_a10/
ID  - MABA_1992_6_3_a10
ER  -