@article{KalboussiIJTEL2016,
author = {Anis Kalboussi and Omar Mazhoud and Ahmed Hadj Kacem},
title = {Comparative study of web annotation systems used by learners to enhance educational practices: features and services},
journal = {International Journal of Technology Enhanced Learning},
year = {2016},
volume = {8},
number = {2},
pages = {129-150},
doi={10.1504/IJTEL.2016.078081},
publisher = {Inderscience}
}