Boduszek, Daniel, Hyland, Philip, Pedziszczak, Jacek and Kielkiewicz, Krzysztof (2012) Criminal attitudes, recidivistic behaviour, and the mediating role of associations with criminal friends : An empirical investigation within a prison sample of violent offenders. Europe's Journal of Psychology, 8 (1). pp. 18-31.
Kielkiewicz , Krzysztof, Boduszek, Daniel and Hyland, Philip (2012) An empirical investigation of mediating role of criminal friends in relationship between criminal attitudes and criminal behaviour within a prison violent sample. Proceedings of the British Psychological Society. ISSN 1754-8837
Hyland, Philip, Boduszek, Daniel and Kielkiewicz, Krzysztof (2011) A psycho-historical analysis of Adolf Hitler : The role of personality, psychopathology, and development. Psychology and Society, 4 (2). pp. 58-63. ISSN 2041-5893