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				 Two schemes of multiparty quantum direct secret sharing via a six-particle GHZ state*  | 
		
| Xin-Wei Zha,Ruo-Xu Jiang,Min-Rui Wang | 
| Figure 2. The flow chart of scheme 2 includes the distribution of particles sequences and corresponding unitary operations ${U}_{{}_{2}}$, ${U}_{{}_{4}}$, ${U}_{{}_{6}}$. | 
	
			 
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