MLA
Bradner, Erin. "Keeping your distance: remote usability testing or the lab–which is the best." User Experience 6.11 (2004).

BIBTEX
@article{bradner2004keeping,
title={Keeping your distance: remote usability testing or the lab--which is the best},
author={Bradner, Erin},
journal={User Experience},
volume={6},
number={11},
year={2004}
}