@Article{KalboussiAJIIPS2013,
author = {Anis Kalboussi and Omar Mazhoud and Nizar Omheni and Ahmed
                  Hadj Kacem},
title = {An Approach of Assistance of Learner's Annotative Activity
                  through Web Services},
journal = {Australian Journal of Intelligent Information Processing
                  Systems (AJIIPS)},
year = {2013},
volume = {13},
number = {3},
pages = {15-22}
}