O
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.