Survey of the Research On Intuitionistic Fuzzy Sets. - Mariana Nikolova; Nikolai Nikolov; Chris Cornelis; Glad Deschrijver (JCIS, 2002)

Representation of Chemical Information in OASIS Centralized 3D Database for Existing Chemicals. - Nikolai Nikolov; Vanjo Grancharov; Galya Stoyanova; Todor Pavlov; Ovanes Mekenyan (J. Chem. Inf. Model., 2006)

Semiregular Polygons. - Oleg Mushkarov; Nikolai Nikolov (Am. Math. Mon., 2006)

A Novel Keystream Generator with Cryptographic Purpose. - Nikolai Nikolov; Nikolai T. Stoianov (MCSS, 2012)