TY  - JOUR
AU  - Plesník, Ján
TI  - On the interchange heuristic for locating centers and medians in a graph
JO  - Mathematica slovaca
PY  - 1987
SP  - 209
EP  - 216
VL  - 37
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MASLO_1987__37_2_a9/
LA  - en
ID  - MASLO_1987__37_2_a9
ER  -