H. J Ryser

COMBINATORIAL DESIGNS AND RELATED SYSTEMS

H. Ryser, W. G Bridges, H. J Ryser, 1969 .

An extension of a theorem of de Bruijn and Erdös on combinatorial designs

H. Ryser, H. J Ryser, H.J Ryser, 1968 .

Term ranks and permanents of nonnegative matrices

H. Ryser, W. Jurkat, W. B Jurkat, 1967 .

Extremal configurations and decomposition theorems. I

H. Ryser, W. Jurkat, W. B Jurkat, 1968 .

Matrix factorizations of determinants and permanents

H. Ryser, W. Jurkat, W. B Jurkat, 1966 .