@misc {IOPORT.70362333,
    author       = {Hmelo, Cindy E. and Vanegas, Jorge A. and Realff, Matthew and Bras, Bret and Mulholland, Jim and Shikano, Terry and Guzdial, Mark},
    title        = {Technology support for collaborative learning in a problem-based curriculum for sustainable technology},
    howpublished = {CSCL, 169-172 (1995).},
    year         = {1995},
    identifier   = {70362333},
}