Sándor-Yang平均关于单参数调和与反调和平均的确界
李少云, 钱伟茂, 徐会作
Sharp bounds for Sándor-Yang means in terms of single parameter harmonic and contra-harmonic means
LI Shaoyun, QIAN Weimao, XU Huizuo
华东师范大学学报(自然科学版) . 2020, (4): 26 -34 .  DOI: 10.3969/j.issn.1000-5641.201911015