Proceedings of the National Academy of Sciences of the United States of America Wengerowsky, S, Joshi, S K, Steinlechner, F, Zichi, J R, Dobrovolskiy, S M, van der Molen, R, Los, J W N, Zwiller, V, Versteegh, M A M, Mura, A, Calonico, D, Inguscio, M, Hübel, H, Bo, L, Scheidl, T, Zeilinger, A, Xuereb, A & Ursin, R 2019, ' Entanglement distribution over a 96-km-long submarine optical fiber ', Proceedings of the National Academy of Sciences of the United States of America, vol. 116, no. 14, pp. 6684-6688 . https://doi.org/10.1073/pnas.1818752116