Long, Shunchao; Wang, Jian A \(\phi\)-Khinchin inequality. (Chinese. English summary) Zbl 0925.42008 J. Eng. Math., Xi’an 14, No. 2, 104-106 (1997). MSC: 42C10 Fourier series in special orthogonal functions (Legendre polynomials, Walsh functions, etc.) 42B20 Singular and oscillatory integrals (Calderón-Zygmund, etc.) PDF BibTeX XML Cite \textit{S. Long} and \textit{J. Wang}, J. Eng. Math., Xi'an 14, No. 2, 104--106 (1997; Zbl 0925.42008)