HARPER, Geoffrey. Lessons from Phenology: an Interim Report. Sibbaldia: the International Journal of Botanic Garden Horticulture, [S. l.], n. 8, p. 149–164, 2010. DOI: 10.24823/Sibbaldia.2010.143. Disponível em: https://journals.rbge.org.uk/rbgesib/article/view/143. Acesso em: 28 mar. 2024.