01106nam a2200289 i 450099100110691970753620020507111349.0970307s1989 uk ||| | eng b1017459x-39ule_instLE00642272ExLDip.to Fisicaita510(08)International Congress on mathematical physics461746Ninth International Congress on mathematical physics :July 1988 /edited by B. Simon, A. Truman and I. DaviesBristol :Adam Hilger Ltd,19891 v.International Congress on mathematical physics ;9Mathematical physicsCongressesDavies, I.Truman, A.Simon, Barry.b1017459x17-02-1727-06-02991001106919707536LE006 53(042+082.2) SIM12006000098427le006-E0.00-l- 00000.i1021393427-06-02Ninth International Congress on mathematical physics189479UNISALENTOle00601-01-97ma -enguk 01