@article{10_4064_aa113_1_7,
     author = {Stephan Baier},
     title = {On the $p^{\lambda }$ problem},
     journal = {Acta Arithmetica},
     pages = {77--101},
     publisher = {mathdoc},
     volume = {113},
     number = {1},
     year = {2004},
     doi = {10.4064/aa113-1-7},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/aa113-1-7/}
}