@inproceedings{inproceedingsec113e60,
title   = {Gathering new knowledge and skills by sharing 3D learning objects across a virtual classroom},
author = {Silveira, Ismar Frango and Ferreira, Maria Alice Grigas Varella},
year = {2003},
publisher = {EMI},
booktitle   = {International Conference on Information Technology Based High Education and Training}
}