Valente, S. M. T. B.; Takito, C.; Leite, M. M. J.; Lemmi, R. C. de A.; Abbud, R. V. L. S. Open University and Its Applicability in Nursing. Rev. Esc. Enferm. USP 1983, 17 (3), 171-178. https://doi.org/10.1590/0080-6234198301700300171.