B. Vassilev

Do Organic Labels Drive Repeat Purchase Loyalty? Investigating Reasons of Growth of the Danish Organic Food Market

P. Chrysochou, B. Vassilev, 2012 .

HIV Risk Behavior Patterns, Predictors, and Sexually Transmitted Disease Prevalence in the Social Networks of Young Roma (Gypsy) Men in Sofia, Bulgaria

J. Kelly, Y. Amirkhanian, W. DiFranceisco, 2006, Sexually transmitted diseases.

Prevention of HIV and sexually transmitted diseases in high risk social networks of young Roma (Gypsy) men in Bulgaria: randomised controlled trial

Sylvia Vassileva, J. Kelly, Y. Amirkhanian, 2006, BMJ : British Medical Journal.

High-Risk Sexual Behavior, HIV/STD Prevalence, and Risk Predictors in the Social Networks of Young Roma (Gypsy) Men in Bulgaria

J. Kelly, Y. Amirkhanian, W. DiFranceisco, 2013, Journal of Immigrant and Minority Health.