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[Lecture Notes in Mathematics] Singularités d'Applications Différentiables Volume 535 || Contact-invariant regularity conditions
Burlet, Oscar, Ronga, FeliceVolume:
10.1007/BF
Year:
1976
Language:
english
DOI:
10.1007/bfb0080502
File:
PDF, 788 KB
english, 1976