@article{10_4064_aa_76_4_335_358,
     author = {Tsutomu Shimada},
     title = {Fermat quotient of cyclotomic units},
     journal = {Acta Arithmetica},
     pages = {335--358},
     publisher = {mathdoc},
     volume = {76},
     number = {4},
     year = {1996},
     doi = {10.4064/aa-76-4-335-358},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/aa-76-4-335-358/}
}