Kreidler, S.M., Muller, K.E., Grunwald, G., Ringham, B.M., Coker-Dukowitz, Z.T., Sakhadeo, U.R., Barón, A.E. and Glueck, D.H. 2013. GLIMMPSE: Online Power Computation for Linear Models with and without a Baseline Covariate. Journal of Statistical Software. 54, 10 (Sep. 2013), 1–26. DOI:https://doi.org/10.18637/jss.v054.i10.