Vgl. Stewart T. Coffin: Geometric Puzzle Design. Wellesley (MA): A. K. Peters Ltd., 2016, ISBN 978-1-56881-499-5, S. 45 (The 3 × 3 × 3 Cube). Online unter: The Puzzling World of Polyhedral Dissections., Kap. 3: Cubic Block Puzzles. Oxford University Press 1991.