1. Grafakos, L.: Modern Fourier Analysis. Graduate Texts in Mathematics, 2nd edn. Springer, New York (2008)
2. Lu, S., Ding, Y., Yan, D.: Singular Integrals and Related Topics. World Scientific Publishing, Singapore (2006)
3. Sobolev, S.L.: On a theorem of functional analysis, Mat. Sb. 4(46), pp. 471–497 (in Russian); English transl. Amer. Math. Soc. 34, 39–68 (1938)
4. Stein, E.M.: Singular Integrals and Differentiability Properties of Functions. Princeton University Press, Princeton (1970)
5. Stein, E.M., Weiss, G.: On the theory of harmonic functions of several variables, I. The theory of $$H^p$$-spaces. Acta Math. 103, 25–62 (1960)