1. G. Alberti, M. Csörnyei, M. Laczkovich and D. Preiss, Denjoy–Young–Saks theorem for approximate derivatives revisited, Real Anal. Exchange, 26 (2000/01), 485–488, MR 1825530 (2002c:26007).
2. P. C. Allaart and K. Kawamura, The Takagi function: a survey (2011) (arXiv: 1110.1691v2 ).
3. S. Eilenberg, Ordered topological spaces, Amer. J. Math., 63 (1941), 39–45, MR 0003201 (2,179e).
4. K. J. Falconer, Fractal Geometry: Mathematical Foundations and Applications, John Wiley & Sons Ltd. (Chichester, 1990), MR 1102677 (92j:28008).
5. E. Hewitt and K. Stromberg, Real and Abstract Analysis. A Modern Treatment of the Theory of Functions of a Real Variable, Springer-Verlag (New York, 1965), MR 0188387 (32 #5826).