1. Algebraic Graph Theory;Biggs,1993
2. Matrices and trees;Bott,1954
3. Distance in Graphs;Buckley,1990
4. Understanding the shortcomings of commodity-based technology in input–output models: an economic-circuit approach;De Mesnard;Journal of Regional Science,2004
5. Using average propagation lengths to identify production chains in the Andalusian economy;Dietzenbacher;Estudios de Economía Aplicada,2005