TY - RPRT TI - Practical quantum cryptography based on two-photon interferometry. AU - AK Ekert AU - JG Rarity AU - PR Tapster AU - Massimo Palma G PY - 1992 DO - 10.1103/physrevlett.69.1293 UR - https://pubmed.ncbi.nlm.nih.gov/10047180/ ID - 10047180 ER -