@article{Konstan2009CMBp583597,
  title = {{Computing polynomials of the {R}amanujan {$t_n$} class invariants}},
  author = {Konstantinou, Elisavet and Kontogeorgis, Aristides},
  file = {ramanujan.pdf},
  volume = {52},
  pages = {583{--}597},
  url = {http://dx.doi.org/10.4153/CMB-2009-058-6},
  doi = {10.4153/CMB-2009-058-6},
  year = {2009},
  journal = {Canad. Math. Bull.},
  abstract = {We compute the minimal polynomials of the Ramanujan values tn , where n = 11 mod 24, using Shimura reciprocity law. These polynomials can be used for defining the Hilbert class field of the imaginary quadratic field {\char8474}({\char8722}n{\char8254}{\char8254}{\char8254}{\mbox{$\surd$}}), and have much smaller coeffcients than the Hilbert polynomials},
  issn = {0008-4395},
  number = {4}
}