@incollection{Hirai09,
author = {Atsuo Hazeyama and Yuuki Hirai},
title = {Concerto II: A Collaborative Learning Support System Based on Question Posing},
booktitle = {Advanced Learning},
publisher = {IntechOpen},
address = {Rijeka},
year = {2009},
editor = {Raquel Hijon-Neira},
chapter = {3},
doi = {10.5772/8102},
url = {https://doi.org/10.5772/8102}
}