TY - JOUR AU - Stefania Castelletto AU - Ivo Degiovanni AU - Alan Migdall AU - M Ware C2 - New Journal of Physics DA - 2004-01-01 00:01:00 LA - en PB - New Journal of Physics PY - 2004 TI - On the Measurement of Two-Photon Single-Mode Coupling Efficiency in PDC Photon Sources ER -