Carver, C.S. (1997) You want to measure coping but your protocol’ too long: Consider the brief cope. Int. J. Behav. Med., 4, 92. https://doi.org/10.1207/s15327558ijbm0401_6
The Brief COPE is available at miami.edu (https://www.psy.miami.edu/faculty/ccarver/brief-cope.html)