@article{10_1007_s10587_012_0069_7,
     author = {Liu, Huaning and Gao, Jing},
     title = {Generalized {Knopp} identities for homogeneous {Hardy} sums and {Cochrane-Hardy} sums},
     journal = {Czechoslovak Mathematical Journal},
     pages = {1147--1159},
     publisher = {mathdoc},
     volume = {62},
     number = {4},
     year = {2012},
     doi = {10.1007/s10587-012-0069-7},
     mrnumber = {3010262},
     zbl = {1259.11044},
     language = {en},
     url = {https://geodesic-test.mathdoc.fr/articles/10.1007/s10587-012-0069-7/}
}