Fernandez-Moya, Jesus, et al. “Clonal Effect on Rooting and Acclimation Rates for in-Vitro Micropropagation in Hybrid Walnut (Juglans X Intermedia Mj 209): Preliminary Observations”. Annals of Silvicultural Research, vol. 44, no. 1, Feb. 2020, pp. 41-46, doi:10.12899/asr-1929.