1. V. I. Burenkov, “Recent progress in studying the boundedness of classical operators of real analysis in general Morrey-type spaces. I,” Eurasian Math. J. 3 (3), 11–32 (2012).
2. V. I. Burenkov, “Recent progress in studying the boundedness of classical operators of real analysis in general Morrey-type spaces. II,” Eurasian Math. J. 4 (1), 21–45 (2013).
3. C. B. Morrey, “On the solutions of quasi-linear elliptic partial differential equations,” Trans. Amer. Math. Soc. 43 (1), 126–166 (1938).
4. E. Nakai, “Hardy–Littlewood maximal operator, singular integral operators and Riesz potentials on generalized Morrey spaces,” Math. Nachr. 166, 95–103 (1994).
5. V. I. Burenkov, V. S. Guliev, and Kh. V. Guliev, “Necessary and sufficient conditions for the boundedness of the fractional maximal operator in local Morrey-type spaces,” Dokl. Ross. Akad. Nauk 409 (4), 443–447 (2006) [Dokl. Math. Dokl. Math. 74 (1), 540–544 (2006)].