@article{10_4064_cm128_2_13,
     author = {Zhongfeng Zhang and Jiagui Luo and Pingzhi Yuan},
     title = {On the diophantine equation $x^y-y^x=c^z$},
     journal = {Colloquium Mathematicum},
     pages = {277--285},
     publisher = {mathdoc},
     volume = {128},
     number = {2},
     year = {2012},
     doi = {10.4064/cm128-2-13},
     language = {fr},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/cm128-2-13/}
}