Varieties of Causal Intervention. - Kevin B. Korb; Lucas R. Hope; Ann E. Nicholson; Karl Axnick (PRICAI, 2004)

Optimised Ordinal Correlation Face Recognition. - Karl Axnick; Ray Jarvis; Kim C. Ng (Artificial Intelligence and Pattern Recognition, 2007)

Using Face Quality Ratings to Improve Real-Time Face Recognition. - Karl Axnick; Ray Jarvis; Kim C. Ng (PSIVT, 2009)