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Results in Mathematics > 2019 > 74 > 4 > 1-21
Bulletin of the Malaysian Mathematical Sciences Society > 2019 > 42 > 2 > 793-802
Journal of Inequalities and Applications > 2017 > 2017 > 1 > 1-7
Journal of the Egyptian Mathematical Society > 2017 > 25 > 3 > 286-290
Bulletin of the Malaysian Mathematical Sciences Society > 2017 > 40 > 2 > 841-855