[1] Bownik, M.: Boundedness of operators on Hardy spaces via atomic decompositions. Proc. Am. Math. Soc. (electronic) 133 (2005), 3535-3542. DOI 10.1090/S0002-9939-05-07892-5 | MR 2163588 | Zbl 1070.42006

[2] Meda, S., Sjögren, P., Vallarino, M.: On the $H^{1}$-$L^{1}$ boundedness of operators. Proc. Am. Math. Soc. 136 (2008), 2921-2931. DOI 10.1090/S0002-9939-08-09365-9 | MR 2399059 | Zbl 1273.42021

[3] Nakai, E., Sawano, Y.: Hardy spaces with variable exponents and generalized Campanato spaces. J. Funct. Anal. (2012), 262 3665-3748. MR 2899976 | Zbl 1244.42012

[4] Rocha, P., Urciuolo, M.: On the $H^{p}$-$L^{q}$ boundedness of some fractional integral operators. Czech. Math. J. 62 (2012), 625-635. DOI 10.1007/s10587-012-0054-1 | MR 2984623 | Zbl 1265.42046

[5] Rocha, P., Urciuolo, M.: On the $H^{p}$-$L^{p}$-boundedness of some integral operators. Georgian Math. J. 18 (2011), 801-808. DOI 10.1515/GMJ.2011.0043 | MR 2897664 | Zbl 1230.42030