MORTENSEN, Chris; LEISHMAN, Steve. Linear Algebra Representation of Necker Cubes I: The Crazy Crate. The Australasian Journal of Logic, [S.l.], v. 7, mar. 2009. ISSN 1448-5052. Available at: <https://ojs.victoria.ac.nz/ajl/article/view/1803>. Date accessed: 24 aug. 2019. doi: https://doi.org/10.26686/ajl.v7i0.1803.