KUHN, Steven; WEATHERSON, Brian. Notes on Some Ideas in Lloyd Humberstone’s Philosophical Applications of Modal Logic. The Australasian Journal of Logic, [S.l.], v. 15, n. 1, apr. 2018. ISSN 1448-5052. Available at: <https://ojs.victoria.ac.nz/ajl/article/view/4072>. Date accessed: 18 oct. 2019. doi: https://doi.org/10.26686/ajl.v15i1.4072.