Partially Ball Weakly Inf-Compact Saddle Functions. - Lionel Thibault; Nadia Zlateva (Math. Oper. Res., 2005)

Parameterized Minimax Problem: On Lipschitz-Like Dependence of the Solution with Respect to the Parameter. - Marc Quincampoix; Nadia Zlateva (SIAM J. Optim., 2008)

Perturbation Method for a Non-convex Integral Functional. - Milen Ivanov; Nadia Zlateva (J. Optim. Theory Appl., 2013)

Surjectivity in Fréchet Spaces. - Milen Ivanov; Nadia Zlateva (J. Optim. Theory Appl., 2019)

Inverse mapping theorem in Fréchet spaces. - Milen Ivanov; Nadia Zlateva (J. Optim. Theory Appl., 2021)

Continuous Selections and Invertibility of Nonsmooth Maps Between Banach Spaces. - Milen Ivanov; Jesús A. Jaramillo; Sebastián Lajara; Nadia Zlateva (J. Optim. Theory Appl., 2025)