Adaptive test system based on revised Bloom's taxonomy. - Mariana Raykova 002; Hristina Kostadinova; George Totkov (CompSysTech, 2011)

Automatized test item generation in moodle. - Mariana Raykova 002; Hristina Kostadinova; George Totkov (CompSysTech, 2014)

Approaches for competencies assessment in open source e-learning environments. - Georgi Tuparov; Hristina Kostadinova; Daniela Tuparova; Mariana Raykova 002 (EDUCON, 2014)