Dooley, Robert A, Levinsohn, Stephen H (1) Riffe, Daniel (university Of North Carolina, Lacy, Stephen (michigan State University. Usa), Watson, Brendan R., Lovejoy, Jennette (university Of Portland (1) Borgatti, Stephen P (1) Borgatti, Stephen P., Everett, Martin G., Johnson, Jeffrey C., Agneessens, Filip (1) Krensky, Stephen (1)