@article{GSU11,
  author =       {S.~Gharibian and J.~Sikora and S.~Upadhyay},
  title =        {{QMA} variants with polynomially many provers},
  journal =      {Quantum Information \& Computation},
  volume =       {13},
  pages =        {0135--0157},
  number =       {1\&2},
  year =         {2013}
}
@book{BV04,
  author =       {S.~Boyd and L.~Vandenberghe},
  title =        {Convex Optimization},
  publisher =    {Cambridge University Press}
  year =         {2004}
}
@inproceedings{BHW89,
  author =       {R.~Beigel and L.~A.~Hemachandra and G.~Wechsung},
  title =        {On the power of probabilistic polynomial time: $P^{NP[log]}\subseteq PP$},
  booktitle =    {Proceedings of the 4th IEEE Conference on Structure in Complexity Theory},
  year =         {1989},
  pages =        {225--227}
}
@unpublished{M07,
  author =       {C.~Mochon},
  title =        {Quantum weak coin flipping with arbitrarily small bias},
  note =          {Available at arXiv.org e-Print quant-ph/0711.4114},
  year =         {2007}
}
@misc{SFH,
  title  =      {Superfluid helium},
  note   =      {\url{https://www.youtube.com/watch?v=2Z6UJbwxBZI}}
}