TY - JOUR T1 - Classical solutions for a perturbed N-body system JF - Topological nonlinear analysis, II (Frascati, 1995), 1--86, Progr. Nonlinear Differential Equations Appl., 27, Birkhauser Boston, Boston, MA, 1997 Y1 - 1995 A1 - Gianfausto Dell'Antonio PB - SISSA Library UR - http://hdl.handle.net/1963/126 U1 - 16 U2 - LISNU U3 - Interdisciplinary Laboratory for Advanced Studies ER -