Reinoso Franco, J. and Viera Benitez, M. del C. 1998. Marchesinia mackaii (Hook.) S.Gray and Nowellia curvifolia (Dicks.) Mitt. in the North-West Peninsular. Acta Botanica Malacitana. 23, (Dec. 1998), 227–228. DOI:https://doi.org/10.24310/abm.v23i0.8567.