Collins, P.J. and Krzyzanowska, K. and Hartmann, S. and Wheeler, G. and Hahn, Ulrike (2020) Conditionals and Testimony. Cognitive Psychology 122 (101329), ISSN 0010-0285.

Collins, P.J. and Hahn, Ulrike (2020) We might be wrong, but we think that hedging doesn't protect your reputation. Journal of Experimental Psychology: Learning, Memory, and Cognition 46 (7), pp. 1328-1348. ISSN 0278-7393.

Collins, P.J. and Hahn, Ulrike and von Gerber, Y. and Olsson, E.J. (2018) The bi-directional relationship between source characteristics and message content. Frontiers in Psychology 9 , p. 18. ISSN 1664-1078.