Gone exercising: mental contrasting promotes physical activity among overweight, middle-aged, low-SES fishermen
Health Psychology (2013) - Comments
pubmed: 22888817  doi: 10.1037/a0029293  issn: 1930-7810  issn: 0278-6133 

Paschal Sheeran, Peter Harris, Jennifer Vaughan, Gabriele Oettingen, Peter M. Gollwitzer