01387nam a2200349 i 450099100111124970753620020507111425.0940317s1979 de ||| | eng b10175209-39ule_instLE00642338ExLDip.to Fisicaita53(06)53(082.2)53.1.34510.35530.1'5QC20.7G.I.F.T International Seminar on theoretical physics463046Nonlinear problems in theoretical physics :proceedings of the IX G.I.F.T International Seminar on theoretical physics held at Jaca, Huesca (Spain), June 1978 /edited by A.F. RañadaBerlin :Springer-Verlag,1979x, 216 p. ;24 cmG.I.F.T International Seminar on theoretical physics ;IXLecture notes in physics / edited by J. Ehlers...[et al.] ;98Mathematical physicsCongressesNonlinear theoriesCongressesRañada, A.F..b1017520917-02-1727-06-02991001111249707536LE006 510.34/510.39 RAN12006000021098le006-E0.00-l- 00000.i1021460427-06-02Nonlinear problems in theoretical physics189428UNISALENTOle00601-01-94ma -engde 01