Reference periods in retrospective behavioral self‐report: A qualitative investigation.

Gryczynski, J., Nordeck, C.D., Mitchell, S. G., O’Grady, K. E., McNeely, J., Wu, L. T., & Schwartz, R. P. (2015). Reference periods in retrospective behavioral self‐report: A qualitative investigation. The American Journal on Addictions, 24(8), 744-747.