1. Hong, Y.: A Hilbert-type integral inequality with quasi-homogeneous kernel and several functions. Acta Math. Sin. Chin. Ser., 57, 833–840 (2014)
2. He, B., Cao, J.F., Yang, B.C.: A brand new multiple Hilbert-type integral inequality. Acta Math. Sin. Chin. Ser. 58, 661–672 (2015)
3. Perić, I., Vuković, P.: Hardy–Hilbert’s inequalities with a general homogeneous kernel. Math. Inequal. Appl. 12, 525–536 (2009)
4. Yang, B.C.: On an extension of Hilbert’s integral inequality with some parameters. Aust. J. Math. Anal. Appl. 1(1), 1–8 (2004)
5. Hong, Y., Wen, Y.M.: A necessary and sufficient condition of that Hilbert type series inequality with homogeneous kernel and the best constant factor. Chin. Ann. Math. 37A(3), 329–336 (2017)