Frédéric Magniez Dominic Mayers Michele Mosca Harold Ollivier Self-testing of Quantum Circuits. 72-83 2006 conf/icalp/2006-1 ICALP (1) http://dx.doi.org/10.1007/11786986_8 db/conf/icalp/icalp2006-1.html#MagniezMMO06