2017
Willis, Charles G., Elizabeth R. Ellwood, Richard B. Primack, Charles C. Davis, Katelin D. Pearson, Amanda S. Gallinat, Jenn M. Yost, Gil Nelson, Susan J. Mazer, Natalie L. Rossington et al. "
Old plants, new tricks: Phenological research using herbarium specimens."
Trends in ecology & evolution 32 (2017): 531-546.
2018
Yost, Jennifer M., Patrick W. Sweeney, Ed Gilbert, Gil Nelson, Robert Guralnick, Amanda S. Gallinat, Elizabeth R. Ellwood, Natalie Rossington, Charles G. Willis, Stanley D. Blum et al. "
Digitization protocol for scoring reproductive phenology from herbarium specimens of seed plants."
Applications in Plant Sciences 6 (2018): e1022.