The Etiology of Social Change. - Kathleen M. Carley; Michael K. Martin; Brian R. Hirshman (Top. Cogn. Sci., 2009)

Leaving us in tiers: can homophily be used to generate tiering effects? - Brian R. Hirshman; Jesse St. Charles; Kathleen M. Carley (Comput. Math. Organ. Theory, 2011)