• [1] J. Kelly, General Topology, Van Nostrand Co., Inc., Princeton, N.J., 1965.
• [2] Serge Lang, Introduction to differentiable manifolds, Interscience Publishers (a division of John Wiley & Sons, Inc.), New York-London, 1962. MR 0155257
• [3] R. Thom, Local topological properties of differentiable mappings, Differential Analysis, Bombay Colloq., Oxford Univ. Press, London, 1964, pp. 191–202. MR 0195102
• [4] R. Thom, Ensembles et morphismes stratifiés, Bull. Amer. Math. Soc. 75 (1969), 240–284 (French). MR 239613, https://doi.org/10.1090/S0002-9904-1969-12138-5
• [5] Hassler Whitney, Tangents to an analytic variety, Ann. of Math. (2) 81 (1965), 496–549. MR 192520, https://doi.org/10.2307/1970400
• [6] H. Whitney, Local properties of analytic varieties, Differential and Combinatorial Topology, Princeton Univ. Press, Princeton, 1965.

References

[1]

J. Kelly, General Topology, Van Nostrand Co., Inc., Princeton, N.J., 1965.

[2]

S. Lang, Introduction to differentiable manifolds, Interscience, New York, 1962. MR 0155257

[3]

R. Thom, Local topological properties of differentiable mappings, ``Colloquium on Differential Analysis''. pp. 191-202, Tata Inst./Oxford Univ. Press, Bombay/London and New York, 1964. MR 0195102

[4]

R. Thom, Ensembles et morphismes stratifiés, Bull. Amer. Math. Soc. 75 (1969), 240-284. MR 0239613

[5]

H. Whitney, Tangents to an analytic variety, Ann, of Math. 81 (1964), 496-549. MR 0192520

[6]

H. Whitney, Local properties of analytic varieties, Differential and Combinatorial Topology, Princeton Univ. Press, Princeton, 1965.