Kraus, K. (1 de agosto de 1981). «Measuring processes in quantum mechanics I. Continuous observation and the watchdog effect». Foundations of Physics(en inglés)11 (7–8): 547-576. Bibcode:1981FoPh...11..547K. ISSN0015-9018. doi:10.1007/bf00726936.
O. Alter and Y. Yamamoto (April 1997). «Quantum Zeno Effect and the Impossibility of Determining the Quantum State of a Single System». Phys. Rev. A55 (5): R2499-R2502. Bibcode:1997PhRvA..55.2499A. doi:10.1103/PhysRevA.55.R2499.
Kraus, K. (1 de agosto de 1981). «Measuring processes in quantum mechanics I. Continuous observation and the watchdog effect». Foundations of Physics(en inglés)11 (7–8): 547-576. Bibcode:1981FoPh...11..547K. ISSN0015-9018. doi:10.1007/bf00726936.
O. Alter and Y. Yamamoto (April 1997). «Quantum Zeno Effect and the Impossibility of Determining the Quantum State of a Single System». Phys. Rev. A55 (5): R2499-R2502. Bibcode:1997PhRvA..55.2499A. doi:10.1103/PhysRevA.55.R2499.
Kraus, K. (1 de agosto de 1981). «Measuring processes in quantum mechanics I. Continuous observation and the watchdog effect». Foundations of Physics(en inglés)11 (7–8): 547-576. Bibcode:1981FoPh...11..547K. ISSN0015-9018. doi:10.1007/bf00726936.