http://www.sciencedirect.com/science/article/pii/S0197455610001358 http://psycnet.apa.org/journals/gpr/16/1/70/ http://www.sciencedirect.com/science/article/pii/S019745561400032X http://link.springer.com/article/10.1007/s11620-014-0225-1 These are abstracts. If you are keen to see the articles in full, email me. ericahollander@comcast.net If the link does not function, copy and paste address into your browser.