@misc{indiciaefbe903eff632, title = {Error prevention scheme with four particles.}, author = {L Vaidman and L Goldenberg and S Wiesner}, year = {1996}, doi = {10.1103/physreva.54.r1745}, url = {https://pubmed.ncbi.nlm.nih.gov/9913754/}, note = {Source identifier: 9913754} }