Algorithm AS 20: The Efficient Formation of a Triangular Array with Restricted Storage for Data
John Ashworth Nelder · Journal of the Royal Statistical Society Series C (Applied Statistics) · 1969
J. A. Nelder, Algorithm AS 20: The Efficient Formation of a Triangular Array with Restricted Storage for Data, Journal of the Royal Statistical Society. Series C (Applied Statistics), Vol. 18, No. 2 (1969), pp. 203-206