@article{10_4064_aa_91_1_85_93,
     author = {Zhenfu Cao},
     title = {A note on the {Diophantine} equation $a^x + b^y = c^z$},
     journal = {Acta Arithmetica},
     pages = {85--93},
     publisher = {mathdoc},
     volume = {91},
     number = {1},
     year = {1999},
     doi = {10.4064/aa-91-1-85-93},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/aa-91-1-85-93/}
}