 The World's Most Famous Math Problem by Marilyn Vos Savant, November, 1993
 Famous Problems and Other Monographs: Famous Problems of Elementary Geometry/from Determinant to Tensor/Introduction to Combinatory Analysis/Three Lectures on Fermat's Last Theorem by F. Klein, June, 1962
 The World's Most Famous Math Problem by Marilyn Vos Savant, November, 1993
 Famous Problems and Other Monographs: Famous Problems of Elementary Geometry/from Determinant to Tensor/Introduction to Combinatory Analysis/Three Lectures on Fermat's Last Theorem by F. Klein, June, 1962
