1. Álvarez, V.:
http://mathworld.wolfram.com/HadamardSearch.html
(to appear, 2006)
2. Lecture Notes in Computer Science;V. Álvarez,2001
3. Lecture Notes in Computer Science;V. Álvarez,2006
4. Álvarez, V., Armario, J.A., Frau, M.D., Real, P.: Homological reduction method for constructing Hadamard cocyclic matrices. In: Communication submitted to the EACA 2006 conference, Sevilla (2006)
5. Lecture Notes in Computer Science;A. Baliga,2001