1. Adams, D.: A note on Riesz potentials. Duke Math. J. 42(4), 765–778 (1975)
2. Akbulut, A., Guliyev, V., Mammadov, Y.: Boundedness of fractional maximal operator and their higher order commutator in the generalized Morrey spaces on Carnot groups. Acta Math. Sci. Ser. B Engl. Ed. 33(5), 1329–1346 (2013)
3. Ariño, M., Muckenhoupt, B.: Maximal functions on classical Lorentz spaces and Hardy’s inequality with weights for nonincreasing functions. Trans. Am. Math. Soc. 320(2), 727–735 (1990)
4. Bahouri, H., Cohen, A.: Refined Sobolev inequalities in Lorentz spaces. J. Fourier Anal. Appl. 17(4), 662–673 (2011)
5. Bennett, C., Sharpley, R.: Interpolation of operators. Pure and Applied Mathematics, Vol 129, Academic Press Inc., Boston, MA, (1988)