Nikolov, S. Construction of a Portfolio Analysis System Using an Ontology-Based Information System Builder. Варна: Наука и икономика, 2013 296-301,.
Nikolov, S. Construction of a Portfolio Analysis System Using an Ontology-Based Information System Builder. Варна: Наука и икономика, 2013 296-301,.
Nikolov, S. (2013) Construction of a Portfolio Analysis System Using an Ontology-Based Information System Builder, Варна: Наука и икономика 296-301,.
Nikolov, S. (2013). Construction of a Portfolio Analysis System Using an Ontology-Based Information System Builder. Съвременни методи и технологии в научните изследвания : Сб. докл. от междунар. науч. конф. (с. 296-301). Варна: Наука и икономика.
Nikolov S. Construction of a Portfolio Analysis System Using an Ontology-Based Information System Builder. Варна: Наука и икономика; 2013. p. 296-301.