James Elmes, A general and bibliographical dictionary of the fine arts (1824), Geometry, p.375 [google books]
ifrs.edu.br
periodicos.ifrs.edu.br
Mello, Leila Inês Pagliarini; Rheinheimer, Juliana Mercedes (2015). «Por que apenas 5 poliedros de Platão?». Revista Eletrônica da Matemática. Consultado em 24 de agosto de 2018
Wildberg (1988): Wildberg discusses the correspondence of the Platonic solids with elements in Timaeus but notes that this correspondence appears to have been forgotten in Epinomis, which he calls "a long step towards Aristotle's theory", and he points out that Aristotle's ether is above the other four elements rather than on an equal footing with them, making the correspondence less apposite.
