TY - RPRT TI - SEQUENTIAL ESTIMATION OF POINTS ON A PSYCHOMETRIC FUNCTION. AU - G B WETHERILL AU - H LEVITT PY - 1965 DO - 10.1111/j.2044-8317.1965.tb00689.x UR - https://pubmed.ncbi.nlm.nih.gov/14324842/ ID - 14324842 ER -