TY - JOUR AU - Stay, Michael TI - Generalized number derivatives JO - Journal of integer sequences PY - 2005 VL - 8 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/JIS_2005__8_1_a3/ LA - en ID - JIS_2005__8_1_a3 ER -