L.
Butschek
Straka, I., Predojevic, A., Huber, T., Lachman, L., Butschek, L., Mikova, M., … Filip, R. (2014). Quantum non-Gaussian Depth of Single-Photon States. Physical Review Letters, 113. http://doi.org/10.1103/PhysRevLett.113.223603