On Asymptotically Optimal Algorithm for One Modification of Planar 3-dimensional Assignment Problem. - Yury Glazkov (OR, 2006)

Approximation algorithms for 2-Peripathetic Salesman Problem with edge weights 1 and 2. - Yury Glazkov; Alexey Baburin; Edward Gimadi; Federico Della Croce; Vangelis Th. Paschos (Electron. Notes Discret. Math., 2006)