Garcia Pindado, Jorge, Martin Gonzalez, Elena, Martin Gonzalez, Jesus (3) Martin, Thomas R. (2) Carusone, Tony Chan (university Of Toronto, Johns, David A. (university Of Toronto, Martin, Kenneth W. (university Of Toronto (1) Borgatti, Stephen P., Everett, Martin G., Johnson, Jeffrey C., Agneessens, Filip (1) Duffy, Martin (1)