“Stress – Its Effects on Health and Behavior: A Guide for Practitioners” Daniel Mills, Christos Karagiannis and Helen Zulch in Veterinary Clinics of North America  (Amazon, PubMed) 

“Feline Cognitive Dysfunction Syndrome” Christos Karagiannis and Daniel Mills in Veterinary Focus – Small Animal Neurology (Download)

“Dogs with separation-related problems show a “less pessimistic” cognitive bias during treatment with fluoxetine (Reconcile) and a behaviour modification plan” Christos Karagiannis, Oliver Burman and Daniel Mills in BMC Veterinary Research 

“Stress As A Risk Factor For Disease” Christos Karagiannis in Feline Behavioral Medicine (Amazon, Elsevier – Σεπτέμβριος 2015)

“Understanding Emotions” Christos Karagiannis and Sarah Heath in Feline Behavioral Medicine (Amazon, Elsevier – Σεπτέμβριος 2015)