Journal Article
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.