1. Social networks, mobility biographies, and travel: survey challenges;Axhausen;Environment and Planning B: Planning and Design,2008
2. On distinguishing between physically active and physically passive episodes and between travel and activity episodes: an analysis of weekend recreational participation in the San Francisco Bay area;Bhat;Transportation Research Part A: Policy and Practice,2004
3. Exploring the propensity to perform social activities: a social network approach;Carrasco;Transportation,2006
4. The social dimension in action: a multilevel, personal networks model of social activity frequency between individuals;Carrasco;Transportation Research Part A: Policy and Practice,2009
5. Assessing the impact of public holidays on travel time expenditure: differentiation by trip motive;Cools;Transportation Research Record: Journal of the Transportation Research Board,2010