1. Gogatishvili, A., Kufner, A., Persson, L. E., and Wedestig, A. An equivalence theorem for some scales of integral conditions related to Hardy’s inequality with applications. Real Anal. Exchange, 2004, 29, 867–880.
2. Gogatishvili, A., Kufner, A., and Persson, L. E. An Equivalence Theorem with Application to Hardy’s Inequality. Research Report 8, Department of Mathematics, Luleå University of Technology, 2007.
3. Gurka, P. Generalized Hardy’s inequality. Časopis Pĕst. Mat., 1984, 109, 194–203.
4. Kufner, A. and Persson, L. E. Weighted Inequalities of Hardy Type. World Scientific Publishing Co, Singapore, 2003.
5. Kufner, A., Persson, L. E., and Wedestig, A. A study of some constants characterizing the weighted Hardy inequality. Banach Center Publ., Orlicz Centenary Volume, 2004, 64, 135–146.
doi:10.4064/bc64-0-11
6. Kufner, A., Maligranda, L., and Persson, L. E. The Hardy Inequality. About Its History and Some Related Results. Vydavatelský servis Publishing House, Pilsen, 2007.
7. Muckenhoupt, B. Hardy's inequality with weights. Collection of articles honoring the completion by Antoni Zygmund of 50 years of scientific activity, I. Studia Math., 1972, 44, 31–38.
8. Opic, B. and Kufner, A. Hardy-Type Inequalities. Pitman Research Notes in Mathematics Series, Vol. 211, Longman Scientific and Technical, Harlow, 1990.
9. Persson, L.-E. and Stepanov, V. Weighted integral inequalities with the geometric mean operator. J. Inequal. Appl., 2002, 7, 727–746.
doi:10.1155/S1025583402000371