Rebufello, E; Piacentini, F; López, M; Kirkwood, R A; Ruo Berchera, I; Gramegna, M; Brida, G; Kück, S; Chunnilall, C J; Genovese, M; Degiovanni, I P (2019) Towards a standard procedure for the measurement of the multi-photon component in a CW telecom heralded single-photon source. Metrologia, 56 (2). 025004 ISSN 0026-1394