TY  - JOUR
AU  - Piroska Lakatos
TI  - Additive functions on trees
JO  - Colloquium Mathematicum
PY  - 2001
SP  - 135
EP  - 145
VL  - 89
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.4064/cm89-1-10/
DO  - 10.4064/cm89-1-10
LA  - en
ID  - 10_4064_cm89_1_10
ER  -