2021. Model of an Interactive Game Environment for Learning of National History. N. Noev, G. Bogdanova, T. Todorov

http://dx.doi.org/10.21125/inted.2021.1886

2019. Accessibility and Some Educational Barriers for Visually Impaired Users. Galina Bogdanova, Todor Todorov, Nikolay Noev

http://dx.doi.org/10.21125/inted.2019.2333