TY - JOUR AU - Reichstein, Zinovy AU - Youssin, Boris TI - Essential Dimensions of Algebraic Groups and a Resolution Theorem for G-Varieties JO - Canadian journal of mathematics PY - 2000 SP - 1018 EP - 1056 VL - 52 IS - 5 UR - http://geodesic.mathdoc.fr/articles/10.4153/CJM-2000-043-5/ DO - 10.4153/CJM-2000-043-5 ID - 10_4153_CJM_2000_043_5 ER -