Il’inskaya, I. P., and D. S. Neguritsa. “Probability Measures on the Group of Walsh Functions With Trivial Equivalence Class”.
Ukrains’kyi Matematychnyi Zhurnal 65, no. 5 (May 25, 2013): 717–721. Accessed April 7, 2025.
https://umj.imath.kiev.ua/index.php/umj/article/view/2455.