R.  Uzdin and Gat, O. . 2013. ?Time-Energy Trade-Off In Unambiguous-State-Discrimination Positive Operator-Valued Measures.?. Physical Review A - Atomic, Molecular, And Optical Physics, 88, Pp. 052327. http://search.ebscohost.com/login.aspx?direct=true&db=edselc&AN=edselc.2-52.0-84888335294&site=eds-live.