TY - JOUR AU - Ikonen, E AU - Toivanen, P AU - Hovia, J AU - Ohno, Yoshi C2 - Metrologia DA - 2002-01-01 00:01:00 LA - en M1 - 39 PB - Metrologia PY - 2002 TI - Intercomparison of the illuminance responsivity scales and units of luminous flux maintained at the HUT (Finland) and the NIST (USA) ER -