Subdifferentials for the difference of two convex functions
E. S. Polovinkin

This publication is cited in the following articles:

1. R. A. Khachatryan, “Usloviya minimuma gladkoi funktsii na granitse kvazidifferentsiruemogo mnozhestva”, Vestnik rossiiskikh universitetov. Matematika, 25:130 (2020), 165–182