1. Promising the Future: Virginity Pledges as They Affect Transition to First Intercourse Bearman, Peter Shawn; Brückner, Hannah 2000 Reports Virginity--Religious aspects--ChristianityGroup identityTeenagers--Sexual behaviorSociology
2. Opposite-Sex Twins and Adolescent Same-Sex Attraction Bearman, Peter Shawn; Brückner, Hannah 2001 Reports Developmental psychologySexual orientationTwinsSociology