TY - JOUR AU - Noriaki Ikeda TI - Momentum Sections in Hamiltonian Mechanics and Sigma Models JO - Symmetry, integrability and geometry: methods and applications PY - 2019 VL - 15 UR - http://geodesic.mathdoc.fr/item/SIGMA_2019_15_a75/ LA - en ID - SIGMA_2019_15_a75 ER -