A trust-region interior-point method for nonlinear programming. - Maria Cristina Villalobos; Yin Zhang 010 (Richard Tapia Celebration of Diversity in Computing Conference, 2005)

Minimal Time Functions and the Smallest Intersecting Ball Problem with Unbounded Dynamics. - Nguyen Mau Nam; Maria Cristina Villalobos; Nguyen Thai An (J. Optim. Theory Appl., 2012)

The smallest enclosing ball problem and the smallest intersecting ball problem: existence and uniqueness of solutions. - Boris S. Mordukhovich; Nguyen Mau Nam; Maria Cristina Villalobos (Optim. Lett., 2013)