A Characterization of Gram Matrices of Polytopes. - Raquel Díaz 002 (Discret. Comput. Geom., 1999)

Proper Hamiltonian cycles in edge-colored multigraphs. - Raquel Águeda; Valentin Borozan; Raquel Díaz 002; Yannis Manoussakis; Leandro Montero (Discret. Math., 2017)