TY - JOUR AU - Atanackovic, Teodor AU - Pilipovic, Stevan TI - Hamilton’s Principle with Variable Order Fractional Derivatives JO - Fractional calculus and applied analysis PY - 2011 SP - 94 EP - 109 VL - 14 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/FCAA_2011_14_1_a5/ LA - en ID - FCAA_2011_14_1_a5 ER -