TY - JA AU - Dunnett,C.W. AU - Sobel,M. TI - Approximations to the probability integral and certain percentage points of a multivariate analogue of student's t-distribution SN - 1464-3510 PY - 1955/// CY - United Kingdom PB - Oxford University Press, KW - Data analysis KW - AGROVOC KW - Models KW - Statistical analysis T2 - Biometrika ER -