Homophily among VAA Users: Similarities and Differences of Node Attributes in a VAA-generated Social Network. - Vasilis Manavopoulos (SMAP, 2014)

Comparing Online and Offline Modes of Survey Administration: VAA Versus Traditional Survey Administration. - Vasiliki Triga; Fernando Mendez; Vasilis Manavopoulos (SMAP, 2014)