@article{article3f2a0ecf,
title   = {An ontology-driven software product line architecture for developing gamified intelligent tutoring systems},
author = {Dermeval, Diego and Leite, Glauber and Almeida, João and Albuquerque, Josmário and Bittencourt, Ig Ibert and Siqueira, Sean and Isotani, Seiji and Pedro, Alan},
year = {2017},
doi = {10.1504/IJKL.2017.10009129},
journal   = {International Journal of Knowledge and Learning}
}