TY - JOUR AU - Umarov, Sabir AU - Saydamatov, Erkin TI - A Fractional Analog of the Duhamel Principle JO - Fractional calculus and applied analysis PY - 2006 SP - 57 EP - 70 VL - 9 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/FCAA_2006_9_1_a4/ LA - en ID - FCAA_2006_9_1_a4 ER -