W
[Wra76] Celia Wrathall. Complete Sets and the Polynomial-Time Hierarchy. Theoretical Computer Science 3(1):23-33. Elsevier, 1976. 
@article{tcs3(1)-Wra,
  author =              {Wrathall, Celia},
  title =               {Complete Sets and the Polynomial-Time Hierarchy},
  publisher =           {Elsevier},
  journal =             {Theoretical Computer Science},
  volume =              {3},
  number =              {1},
  pages =               {23-33},
  year =                {1976},
}
List of authors