@inproceedings{inproceedings220da686,
title   = {Flexible guided-tours in hypertexts: a way of controlling the user in learning applications},
author = {Nunes, Maria das Graças Volpe and Fortes, Renata Pontin de Mattos and Nicoletti, Maria do Carmo},
year = {1997},
booktitle   = {World Multiconference on Systemics, Cybernetics and Informatics}
}