T. R. ALLNUTT, J. R. COURTIS, M. GARDNER, and A. C. NEWTON, “GENETIC VARIATION IN WILD CHILEAN AND CULTIVATED BRITISH POPULATIONS OF PODOCARPUS SALIGNUS D. DON (PODOCARPACEAE)”, Edinburgh J. Bot., vol. 58, no. 3, pp. 459–473, Oct. 2001, doi: 10.1017/S0960428601000774.