The British Sign Language (BSL) norms for age of acquisition, familiarity, and iconicity: David P. Vinson, Kearsy Cormier, Tanya Denmark, Adam Schembri, and Gabriella Vigliocco, University College London (Behavior Research Methods 2008, 40 (4), 1079-1087)
PDF – 9 pages
http://brm.psychonomic-journals.org/content/40/4/1079.full.pdf+html
