TY  - JOUR
AU  - Kolář, Josef
TI  - A new possibility in bi-directional search
JO  - Kybernetika
PY  - 1977
SP  - 
EP  - 22
VL  - 13
IS  - 1
PB  - mathdoc
UR  - https://geodesic-test.mathdoc.fr/item/KYB_1977__13_1_a1/
LA  - en
ID  - KYB_1977__13_1_a1
ER  -