TY - JOUR AU - Charles F. Osgood TI - Product Type Bounds on the Approximation of Values of E and G Functions. JO - Monatshefte für Mathematik PY - 1986 SP - 7 EP - 26 VL - 102 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MOMA_1986__102_178286/ ID - MOMA_1986__102_178286 ER -