Cid, Luis Pedro Barrueto. “Fluctuations of Rest and Activity Periods in the Intermittent Growth of Rubber Tree Nursery Seedlings”. Pesquisa Agropecuaria Brasileira, vol. 14, no. 4, Apr. 2014, pp. 329-31, doi:10.1590/S1678-3921.pab1979.v14.16714.