Watts, Tuesday M and Holmes, Luke and Raines, Jamie and Orbell, Sheina and Rieger, Gerulf (2018) 'Gender Nonconformity of Identical Twins With Discordant Sexual Orientations: Evidence From Childhood Photographs.' Developmental Psychology, 54 (4). pp. 788-801. ISSN 0012-1649

Watts, Tuesday M (2017) The Discordant Development of Sexual Orientation in Identical Twins. PhD thesis, University of Essex.

Watts, Tuesday M and Holmes, Luke and Savin-Williams, Ritch C and Rieger, Gerulf (2017) 'Pupil Dilation to Explicit and Non-Explicit Sexual Stimuli.' Archives of Sexual Behavior, 46 (1). pp. 155-165. ISSN 0004-0002