@article{10_4064_aa_91_3_233_248,
     author = {Wenguang Zhai},
     title = {On sums and differences of two coprime kth powers},
     journal = {Acta Arithmetica},
     pages = {233--248},
     publisher = {mathdoc},
     volume = {91},
     number = {3},
     year = {1999},
     doi = {10.4064/aa-91-3-233-248},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/aa-91-3-233-248/}
}