Hamiltonian flows of curves in G / SO ( N ) and vector soliton equations of mKdV and sine-Gordon type. Anco, Stephen C. — 2006 SIGMA. Symmetry, Integrability and Geometry: Methods and Applications [electronic only]
Generalized symmetries of massless free fields on Minkowski space. Pohjanpelto, Juha; Anco, Stephen C. — 2008 SIGMA. Symmetry, Integrability and Geometry: Methods and Applications [electronic only]