S. Meira, E. Albuquerque, and J. Tepedino.
" An Experience in Building an Object-Oriented Prototype of an Advanced Hypertext System", in <em>Anais do IV Simpósio Brasileiro de Engenharia de Software</em>, Águas de São Pedro/São Paulo, 1990, pp. 150-168, doi: <a href="https://doi.org/10.5753/sbes.1990.24173">https://doi.org/10.5753/sbes.1990.24173</a>.