@incollection{ramanujan:1927:spb,
    author = {Ramanujan, S.},
     title = {Some properties of {B}ernoulli's numbers (J. Indian Math. Soc. {\bf 3}
             (1911), 219–234.)},
 booktitle = {Collected Papers},
 publisher = {Cambridge University Press},
      year = {1927}}