%0 Journal Article %1 dokovic93 %A Doković, Dragomir Z̆. %D 1993 %J Discrete Mathematics %K %N 1–3 %P 267 -- 271 %R 10.1016/0012-365X(93)90495-F %T Williamson Matrices of Order $4n$ for $n = 33, 35, 39$ %V 115 %X Nonequivalent Williamson matrices (always with symmetric circulant blocks) of indicated orders are enumerated. Since we have found a new Williamson matrix of order 4·33, the result of Koukouvinos and Kounias (1988) is incomplete. The claim made in the title of their paper (1990) is erroneous as we have found a Williamson matrix of order 4·39

@article{dokovic93, abstract = {Nonequivalent Williamson matrices (always with symmetric circulant blocks) of indicated orders are enumerated. Since we have found a new Williamson matrix of order 4·33, the result of Koukouvinos and Kounias (1988) is incomplete. The claim made in the title of their paper (1990) is erroneous as we have found a Williamson matrix of order 4·39 }, added-at = {2015-11-09T05:06:00.000+0100}, author = {Doković, Dragomir Z̆.}, biburl = {https://www.bibsonomy.org/bibtex/23e30a1b5d542ce7ac37d550986d77f54/ytyoun}, doi = {10.1016/0012-365X(93)90495-F}, interhash = {e6a2091433e22293219395abf7a63b42}, intrahash = {3e30a1b5d542ce7ac37d550986d77f54}, issn = {0012-365X}, journal = {Discrete Mathematics }, keywords = {}, number = {1–3}, pages = {267 -- 271}, timestamp = {2015-11-09T05:06:00.000+0100}, title = {{Williamson} Matrices of Order $4n$ for $n = 33, 35, 39$}, volume = 115, year = 1993 }