@article{Sheppard1988,
author = {Sheppard, B.H. and Hartwick, J. and Warshaw, P.R.},
title= {The theory of reasoned action: A meta-analysis of past research with recommendations for modifications and future research},
year = {1988},
doi = {10.1086/209170},
journal = {Journal of Consumer Research},
volume = {15},
number = {3},
pages = {325--343},
}