J. W. Bruce, “Stable mappings of discriminant varieties”, Math. Proc. Camb. Phil. Soc., 103, № 1, 1988, 69
S. F. Shandarin, The Origin and Evolution of Galaxies, 1983, 171
Ragnar-Olaf Buchweitz, Wolfgang Ebeling, Hans-Christian Graf von Bothmer, “Low-dimensional singularities with free divisors as discriminants”, J. Algebraic Geom., 18, № 2, 2008, 371
James Damon, New Developments in Singularity Theory, 2001, 405
V. I. Arnol'd, “Evolution of singularities of potential flows in collision-free media and the metamorphosis of caustics in three-dimensional space”, J Math Sci, 32, № 3, 1986, 229
Ilia A. Bogaevski, The Arnold-Gelfand Mathematical Seminars, 1997, 107
StanisŁaw Janeczko, “A note on singular lagrangian submanifolds”, Journal of Geometry and Physics, 2, № 3, 1985, 33
Inna Scherbak, Real And Complex Singularities, 2003
O. V. Lyashko, “Geometry of bifurcation diagrams”, J Math Sci, 27, № 3, 1984, 2736
Dirk-J. Smite, Maarten V. de Hoop, 424, Geometric and Quantum Aspects of Integrable Systems, 1993, 131