RT Journal Article T1 On the Preservation of the Quantity N(G)for Discrete Zn-Graded Contractions of Lie Algebras A1 Campoamor Stursberg, Otto-Rudwig PB Hadronic Press SN 0162-5519 YR 2004 FD 2004 LK https://hdl.handle.net/20.500.14352/50745 UL https://hdl.handle.net/20.500.14352/50745 DS Docta Complutense RD 7 abr 2025