Gregory, David A., Kevin N. Vander Meulen, and Bryan L. Shader. “Rank decompositions and signed bigraphs.” Linear and Multilinear Algebra 40, no. 4 (1996): 283–301.
Gregory, David A., Kevin N. Vander Meulen, and Bryan L. Shader. “Rank decompositions and signed bigraphs.” Linear and Multilinear Algebra 40, no. 4 (1996): 283–301.