Paley-Wiener-type theorem for a class of integral transforms arising from a singular Dirac system. Zayed, A.I., Tuan, V.K. (2000) Zeitschrift für Analysis und ihre Anwendungen
Planar harmonic univalent and related mappings. Ahuja, Om P. (2005) JIPAM. Journal of Inequalities in Pure & Applied Mathematics [electronic only]
Pseudodifferential operators and Hardy kernels on L p ( 𝐑 + ) Jeff E. Lewis, Cesare Parenti (1980) Annali della Scuola Normale Superiore di Pisa - Classe di Scienze