Stoyanov, S., A. Stoyanova-Doycheva, T. Glushkova, E. Doychev, и J. Todorov. A REFERENCE ARCHITECTURE OF INTERNET OF THINGS ECOSYSTEM. КОМПЮТЪРНИ НАУКИ И КОМУНИКАЦИИ, том 7, бр 1, July 2018, с-ци 20-28, https://csc.bfu.bg/index.php/CSC/article/view/201.