Harmonic Analysis (PMS-43): Real-Variable Methods, ...
Elias M. Stein
Gandulfo, A., J. Garcia-Cuerva, and M. Taibleson [1976] Conjugate system characterization of H1: Counterexamples for the Euclidean plane and local fields, Bull. Amer. Math. Soc. 82:83-85. Garcia-Cuerva, J. [1983] An extrapolation theorem ...