@article{10_4064_aa_63_4_335_349,
     author = {Masayoshi Hata},
     title = {Rational approximations to \ensuremath{\pi} and some other numbers},
     journal = {Acta Arithmetica},
     pages = {335--349},
     publisher = {mathdoc},
     volume = {63},
     number = {4},
     year = {1993},
     doi = {10.4064/aa-63-4-335-349},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/aa-63-4-335-349/}
}