@article{10_4064_aa_35_4_361_366,
     author = {J. Van de Lune},
     title = {A note on a formula of van der {Pol}},
     journal = {Acta Arithmetica},
     pages = {361--366},
     publisher = {mathdoc},
     volume = {35},
     number = {4},
     year = {1979},
     doi = {10.4064/aa-35-4-361-366},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/aa-35-4-361-366/}
}