Beltrán, R., N. Cebrián, C. Zornoza, A. Garmendia, and H. B. Merle. “Effect of Freezing Conservation Time on Loquat (Eriobotrya Japonica) Pollen Germination”. Spanish Journal of Agricultural Research, Vol. 18, no. 3, Dec. 2020, p. e0804, doi:10.5424/sjar/2020183-16626.