Size of Quantum Versus Deterministic Finite Automata. - Andris Ambainis; Uldis Barbans; Agnese Belousova; Aleksandrs Belovs; Ilze Dzelme; Girts Folkmanis; Rusins Freivalds; Peteris Ledins; Rihards Opmanis; Agnis Skuskovniks (VLSI, 2003)

Fast and Simple Approximation of the Diameter and Radius of a Graph. - Krists Boitmanis; Karlis Freivalds; Peteris Ledins; Rudolfs Opmanis (WEA, 2006)