(1)
Adamowicz, T.; Harjulehto, P.; Hästö, P. Maximal Operator in Variable Exponent Lebesgue Spaces on Unbounded Quasimetric Measure Spaces. Math. Scand. 2015, 116 (1), 5-22. https://doi.org/10.7146/math.scand.a-20448.