Couprie, Dirk L. The dodecahedron, or the shape of the earth according to Plato. Heaven and Earth in Ancient Greek Cosmology: From Thales to Heraclides Ponticus. Astrophysics and Space Science Library 374. Springer. 2011: 201–212. ISBN 9781441981165. doi:10.1007/978-1-4419-8116-5_17.