S. Howe

Estimating plant abundances from pollen percentages: The use of regression analysis

T. Webb,, R. Bradshaw, K. Heide, 1981 .

Guide to Available Mathematical Software.

Ronald F. Boisvert, John F. Monahan, David K. Kahaner, 1984 .

Calibrating pollen data in climatic terms: Improving the methods

T. Webb,, S. Howe, 1983 .

GAMS: a framework for the management of scientific software

Ronald F. Boisvert, David K. Kahaner, Sally E. Howe, 1985, TOMS.

The guide to available mathematical software problem classification system

Ronald F. Boisvert, David K. Kahaner, Sally E. Howe, 1990 .