peoplepill id: david-singmaster
DS
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The works
Books
Sources:
Openlibrary
1980
Notes on Rubik's Magic Cube
Authors:
2001
Handbook of Cubik Math
Authors:
Alexander Frey Jr.
David Singmaster
1993
Sources in recreational mathematics
Authors:
1980
Notes on Rubik magic cube
Authors:
1987
Rubik's Cubic Compendium
Authors:
David Singmaster