On 1 w + 1 x + 1 y + 1 z = 1 2 $\frac{1}{w} + \frac{1}{x} + \frac{1}{y} + \frac{1}{z} = \frac{1}{ 2} $ and some of its generalizations

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ژورنال

عنوان ژورنال: Journal of Inequalities and Applications

سال: 2018

ISSN: 1029-242X

DOI: 10.1186/s13660-018-1782-z