TY  - JOUR
AU  - Moumoutzis, Nektarios
AU  - Christoulakis, Marios
AU  - Sifakis, Yiannis
AU  - Christodoulakis, Stavros
AU  - Pavlov, Radoslav
AU  - Pavlova, Lilia
TI  - Operational Conceptual Modeling in Building and Sustaining Technology Enhanced Learning Communities
JO  - Serdica Journal of Computing
PY  - 2021
SP  - 43
EP  - 84
VL  - 15
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/SJC_2021_15_1_a2/
LA  - en
ID  - SJC_2021_15_1_a2
ER  -