TY - JOUR AU - Mikulski, W. M. TI - On symmetrization of jets JO - Czechoslovak Mathematical Journal PY - 2011 SP - 157 EP - 168 VL - 61 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.1007/s10587-011-0004-3/ DO - 10.1007/s10587-011-0004-3 LA - en ID - 10_1007_s10587_011_0004_3 ER -