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Ted Spence's Home Page
Classification of Hadamard matrices and designs.

Handbook of Combinatorial Designs
Home page for The CRC Handbook of Combinatorial Designs.

Orthogonal Arrays and Covering Arrays
Construction of orthogonal arrays and covering arrays using permutation groups by George Sherwood.

SOMA Update
Leonard Soicher reports on new SOMAs, which are generalisations of mutually orthogonal latin squares.

Golomb Rulers - The Search For 20, 21 and 22!
The search for optimal Golomb Rulers with 20, 21 and 22 marks.

Small Association Schemes
Tables of homogeneous coherent configurations by A. Hanaki and I. Miyamoto.

D.H. Rees Home Page
Information on Nested and Orthogonal BIBDs and related topics.

Design Resources
Links to resources for design theory maintained by Peter Cameron.

The Hadamard Maximal Determinant Problem
List of known {-1,1}-matrices with largest determinant and D-optimal designs.

Golomb Ruler Table
Lengths of shortest known Golomb rulers with up to 150 marks.

More Design Theory Sites

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