N. J.  Smucker and Vis, M. L., ?Diatom biomonitoring of streams: reliability of reference sites and the response of metrics to environmental variations across temporal scales?, Ecological Indicators, vol. 11, 2011.

N. J.  Smucker and Vis, M. L., ?Spatial factors contribute to benthic diatom structure in streams across spatial scales: considerations for biomonitoring?, Ecological Indicators, vol. 11, 2011.

J. T.  Zalack, Smucker, N. J., and Vis, M. L., ?Development of a diatom index of biotic integrity for acid mine drainage impacted streams?, Ecological Indicators, vol. 10, 2010.