Decontaminating Planar Regions by Sweeping with Barrier Curves. - Borislav Karaivanov; Minko Markov; Jack Snoeyink; Tzvetalin S. Vassilev (CCCG, 2014)

On Certain Sums Involving the Legendre Symbol. - Borislav Karaivanov; Tzvetalin S. Vassilev (Integers, 2016)