TY - JOUR AU - Wynn, P. TI - Upon the generalised inverse of a formal power series with vector valued coefficients JO - Compositio Mathematica PY - 1971 SP - 453 EP - 460 VL - 23 IS - 4 PB - Wolters-Noordhoff Publishing UR - http://www.numdam.org/item/CM_1971__23_4_453_0/ LA - en ID - CM_1971__23_4_453_0 ER -