TY  - JOUR
AU  - Loebl, Martin
TI  - Hercules and Hydra, a game on rooted finite trees
JO  - Commentationes Mathematicae Universitatis Carolinae
PY  - 1985
SP  - 259
EP  - 267
VL  - 26
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/CMUC_1985__26_2_a5/
LA  - en
ID  - CMUC_1985__26_2_a5
ER  -