TY - JOUR AU - Harry A.W.M. Kneppers TI - The Hasse-Witt Matrix of a Formal Group. JO - Mathematische Zeitschrift PY - 1985 SP - 151 EP - 166 VL - 189 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MZ_1985__189_173573/ ID - MZ_1985__189_173573 ER -