フォードの円
1 2 3 4 5 Ford, Lester R (1938), “Fractions”, The American Mathematical Monthly 45 (9): 586-601, doi:10.2307/2302799, MR1524411 .
1 2 Coxeter, H. S. M. (1968), “The problem of Apollonius”, The American Mathematical Monthly 75: 5-15, doi:10.2307/2315097, MR0230204 .
↑ Fukagawa, Hidetosi; Pedoe, Dan (1989), Japanese temple geometry problems, Winnipeg, MB: Charles Babbage Research Centre, ISBN 0-919611-21-4, MR1044556 .
↑ Conway, John H. (1997), The sensual (quadratic) form, Carus Mathematical Monographs, 26, Washington, DC: Mathematical Association of America, pp.
28-33, ISBN 0-88385-030-3, MR1478672 .
↑ Graham, Ronald L.; Lagarias, Jeffrey C.; Mallows, Colin L.; Wilks, Allan R.; Yan, Catherine H. (2003), “Apollonian circle packings: number theory”, Journal of Number Theory 100 (1): 1-45, arXiv:math.NT/0009113, doi:10.1016/S0022-314X(03)00015-5, MR1971245 .
↑ Marszalek, Wieslaw (2012), “Circuits with oscillatory hierarchical Farey sequences and fractal properties”, Circuits, Systems and Signal Processing 31 (4): 1279-1296, doi:10.1007/s00034-012-9392-3 .