Modelling of e-learning processes: an approach used in Plovdiv e-university. - George Totkov; Elena Somova; Mariana Sokolova (CompSysTech, 2004)

European standardization: mobility without borders. - Rositsa Doneva; George Totkov; Nikolay Kasakliev; Elena Somova (CompSysTech, 2009)

Tunnel Parsing. - Nikolay Handzhiyski; Elena Somova (CEFP, 2019)

Can e-book technology be enough to support elearning? - Martin Takev; Elena Somova; Miguel Rodríguez-Artacho; Manuel Castro 001; Sergio Martín 001 (EDUCON, 2020)

Tunnel Parsing with counted repetitions. - Nikolay Handzhiyski; Elena Somova (Comput. Sci., 2020)

Тhe Expressive Power of the Statically Typed Concrete Syntax Trees. - Nikolay Handzhiyski; Elena Somova (ERIS, 2021)

Mobile Game-based Learning Model for Primary School Learners. - Margarita Gocheva; Elena Somova; Nikolay Kasakliev (ERIS, 2022)