TY - JOUR AU - Jack Stone AU - Jennifer Decker AU - Patrick Gill AU - Andrew Lewis AU - Patrick Juncar AU - Daniele Rovera AU - Miguel Villiseid C2 - Metrologia DA - 2009-01-01 LA - en M1 - 46 PB - Metrologia PY - 2009 TI - Advice from the CCL on the use of unstabilized lasers as standards of wavelength: the helium-neon laser at 633 nm ER -