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[NTS95] Noam Nisan and Amnon Ta-Shma. Symmetric LOGSPACE is Closed Under Complement. In STOC'95, pages 140-146. ACM Press, May 1995. 
@inproceedings{stoc1995-NT,
  author =              {Nisan, Noam and Ta-Shma, Amnon},
  title =               {Symmetric {LOGSPACE} is Closed Under Complement},
  booktitle =           {{P}roceedings of the 27th {A}nnual {ACM} {S}ymposium
                         on the {T}heory of {C}omputing ({STOC}'95)},
  acronym =             {{STOC}'95},
  publisher =           {ACM Press},
  pages =               {140-146},
  year =                {1995},
  month =               may,
}
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