Crofts, J.J.; Estrada, E.; Higham, D. H.; Taylor, A. Mapping directed networks. Electronic Transactions in Numerical Analysis. 37, 2010 337-350.

Crofts, J.J.; Estrada, E.; Higham, D. H.; Taylor, A. Mapping directed networks. Electronic Transactions in Numerical Analysis. 37, 2010 337-350. [PDF]