TY - GEN AU - Abenda, Simonetta. AU - Gaeta, Giuseppe, AU - Walcher, Sebastian. CN - Ebrary Academic Complete CN - QC174.17.S9 CY - River Edge, NJ : DA - c2002. ID - 377319 KW - Symmetry (Physics) KW - Perturbation (Mathematics) LK - https://univsouthin.idm.oclc.org/login?url=http://site.ebrary.com/lib/usiricelib/Doc?id=10255389 PB - World Scientific, PP - River Edge, NJ : PY - c2002. T1 - Symmetry and perturbation theoryproceedings of the international conference SPT 2002, Cala Gonone, Sardinia, Italy, 19-26 May 2002 / TI - Symmetry and perturbation theoryproceedings of the international conference SPT 2002, Cala Gonone, Sardinia, Italy, 19-26 May 2002 / UR - https://univsouthin.idm.oclc.org/login?url=http://site.ebrary.com/lib/usiricelib/Doc?id=10255389 ER -