Gaya APA

Viegas, J, M., Martínez, L, M. (2012). A new approach to modelling distance-decay functions for accessibility assessment in transport studies . Portugal: Elsevier.

Gaya MLA

Viegas, José, Manuel., Martínez, L., Miguel. "A new approach to modelling distance-decay functions for accessibility assessment in transport studies". Portugal: Elsevier, 2012. Article.