@article{10_4064_aa_45_4_289_307,
     author = {Jan Turk},
     title = {On the difference between perfect powers},
     journal = {Acta Arithmetica},
     pages = {289--307},
     publisher = {mathdoc},
     volume = {45},
     number = {4},
     year = {1985},
     doi = {10.4064/aa-45-4-289-307},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/aa-45-4-289-307/}
}