S
[Sto87] Larry J. Stockmeyer. Classifying the Computational Complexity of Problems. Journal of Symbolic Logic 52(1):1-43. Association for Symbolic Logic, March 1987. 
@article{jsl52(1)-Sto,
  author =              {Stockmeyer, Larry J.},
  title =               {Classifying the Computational Complexity of
                         Problems},
  publisher =           {Association for Symbolic Logic},
  journal =             {Journal of Symbolic Logic},
  volume =              {52},
  number =              {1},
  pages =               {1-43},
  year =                {1987},
  month =               mar,
}
List of authors