TY  - JOUR
AU  - M. Markl 
TI  - Lie Elements in Pre-Lie Algebras, Trees and Cohomology Operations
JO  - Journal of Lie theory
PY  - 2007
SP  - 241
EP  - 261
VL  - 17
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/JLT_2007_17_2_JLT_2007_17_2_a1/
ID  - JLT_2007_17_2_JLT_2007_17_2_a1
ER  -