HIROTA, O. Experimental study for Yuen-Kim protocol of quantum key distribution with unconditional secure. http://arxiv.org/PS_cache/quant-ph/pdf/0212/0212050v1.pdf. 2002
NISHIOKA, T. How mach security does Y-00 protocol provide us?. http://arxiv.org/PS_cache/quant-ph/pdf/0310/0310168v2.pdf. 2003