@Article{SCI:Alt1997b,
  author =    "O. Alter and Y. Yamamoto",
  title =     "Quantum Zeno Effect and the Impossibility of
              Determining the Quantum State of a Single System",
  journal =   "Physical Review A",
  volume =    "55",
  number =    "4",
  pages =     "R2499--R2502",
  year =      "1997",
  month =     "April",
  doi =       "10.1103/PhysRevA.55.R2499",
  url =       "http://www.sci.utah.edu/publications/Alt1997b/Alter_PhysRevA.55.R2499.pdf",
}