ビーティ数列
Holshouser, Arthur; Reiter, Harold (2001). “A generalization of Beatty's Theorem”. Southwest Journal of Pure and Applied Mathematics 2: 24–29. オリジナルの2014-04-19時点におけるアーカイブ。. https://web.archive.org/web/20140419014134/http://math.uncc.edu/preprint/2002/generalization-beattys-theorem.
Stolarsky, Kenneth (1976). “Beatty sequences, continued fractions, and certain shift operators”. Canadian Mathematical Bulletin 19 (4): 473–482. doi:10.4153/CMB-1976-071-6. MR0444558. Includes many references.