a Article Guíñez, V. | Sáez, E. Versal Unfoldings for Rank-2Singularities of Positive Quadratic Differential Forms PDF 2002 - Edicions de la Universitat de Lleida Is part of Qualitative Theory of Dynamical Systems : 3, 2, 2002 Permissions Download | NO Copy/paste | NO Printing Download | NO Copy/paste | NO Printing EUR 6.00 VAT Excluded