TY - JOUR AU - Matthias Hammerl AU - Petr Somberg AU - Vladimír Souček AU - Josef Šilhan TI - On a new normalization for tractor covariant derivatives JO - Journal of the European Mathematical Society PY - 2012 SP - 1859 EP - 1883 VL - 14 IS - 6 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4171/jems/349/ DO - 10.4171/jems/349 ID - JEMS_2012_14_6_a4 ER -