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APA Citation
Catara, S., Cristaudo, A., Gualtieri, A., Galesi, R., Impelluso, C., & Onofri, A. (2016). threshold temperatures for seed germination in nine species of Verbascum (Scrophulariaceae). Seed science research, 26(1), 30–46. http://access.bl.uk/ark:/81055/vdc_100030783619.0x000036