Aubin criterion for metric regularity AL Dontchev, M Quincampoix, N Zlateva Journal of Convex Analysis 13 (2), 281-297, 2006 | 114 | 2006 |

Characterizations of prox-regular sets in uniformly convex Banach spaces F Bernard, L Thibault, N Zlateva Journal of Convex Analysis 13 (3/4), 525-559, 2006 | 88* | 2006 |

Prox-regular sets and epigraphs in uniformly convex Banach spaces: various regularities and other properties F Bernard, L Thibault, N Zlateva Transactions of the American Mathematical Society 363 (4), 2211-2247, 2011 | 52 | 2011 |

Second-order subdifferentials of C1,1 functions and optimality conditions PG Georgiev, NP Zlateva Set-Valued Analysis 4 (2), 101-117, 1996 | 44 | 1996 |

Integrability of subdifferentials of directionally Lipschitz functions L Thibault, N Zlateva Proceedings of the American Mathematical Society 133, 2939-2948, 2005 | 18 | 2005 |

On primal lower-nice property M Ivanov, N Ziateva Comptes Rendus de l'Academie Bulgare des Sciences 54 (11), 5-10, 2001 | 13 | 2001 |

Lasry–Lions regularizations and reconstruction of subdifferentials P Georgiev, N Zlateva Comptes Rendus de l'Academie Bulgare des Sciences 51 (9-10), 9-12, 1998 | 11 | 1998 |

A Variational Principle and Best Proximity Points M Ivanov, B Zlatanov, N Zlateva Acta Math. Sinica (English series) 31 (8), 1315-1326, 2015 | 10 | 2015 |

Abstract subdifferential calculus and semi-convex functions M Ivanov, N Zlateva Serdica Mathematical Journal 23 (1), 35-58, 1997 | 10 | 1997 |

Reconstruction of the Clarke subdifferential by the Lasry–Lions regularizations PG Georgiev, NP Zlateva Journal of Mathematical Analysis and Applications 248 (2), 415-428, 2000 | 8 | 2000 |

Subdifferential characterization of primal lower-nice functions on smooth Banach spaces M Ivanov, N Ziateva Comptes Rendus de l'Academie Bulgare des Sciences 57 (5), 5-13, 2004 | 7 | 2004 |

Surjectivity in Fréchet Spaces M Ivanov, N Zlateva Journal of Optimization Theory and Applications 182 (1), 265–284, 2019 | 6 | 2019 |

Long Orbit or Empty Value Principle, Fixed Point and Surjectivity Theorems M Ivanov, N Zlateva Comptes Rendus de l'Academie Bulgare des Sciences 69 (5), 553-562, 2016 | 6 | 2016 |

Integrability of subdifferentials of certain bivariate functions L Thibault, N Zlateva Nonlinear Analysis: Theory, Methods & Applications 54 (7), 1251-1269, 2003 | 6 | 2003 |

A Simple Case within Nash–Moser–Ekeland Theory M Ivanov, N Zlateva Comptes rendus de l'Académie bulgare des Sciences 72 (2), 152-157, 2019 | 5* | 2019 |

Parameterized minimax problem: on Lipschitz-like dependence of the solution with respect to the parameter M Quincampoix, N Zlateva SIAM Journal on Optimization 19 (3), 1250-1269, 2008 | 4 | 2008 |

On Lipschitz regularity of minimizers of a calculus of variations problem with non locally bounded Lagrangians M Quincampoix, N Zlateva Comptes Rendus Mathematique 343 (1), 69-74, 2006 | 4 | 2006 |

Optimal Cutting Problem A Avdzhieva, T Balabanov, G Evtimov, D Kirova, H Kostadinov, T Tsachev, ... 113-th European Study Group with Industry (ESGI'113), September 14-18, 2015 …, 2015 | 3 | 2015 |

On nonconvex version of the inequality of Clarke and Ledyaev M Ivanov, N Zlateva Nonlinear Analysis: Theory, Methods & Applications 49 (8), 1023-1036, 2002 | 3 | 2002 |

Second subdifferentials of C1,1 functions, optimality conditions and well posedness PG Georgiev, NP Zlateva Comptes Rendus de l'Academie Bulgare des Sciences 46 (11), 25-28, 1993 | 3 | 1993 |