Anderson & Hill (2002), p. 67. Anderson, Gregory J.; Hill, James D. (2002). "Many to flower, few to fruit: the reproductive biology of Hamamelis virginiana (Hamamelidaceae)". American Journal of Botany. 89 (1): 67–78. doi:10.3732/ajb.89.1.67. PMID21669713.
Anderson & Hill (2002), p. 68. Anderson, Gregory J.; Hill, James D. (2002). "Many to flower, few to fruit: the reproductive biology of Hamamelis virginiana (Hamamelidaceae)". American Journal of Botany. 89 (1): 67–78. doi:10.3732/ajb.89.1.67. PMID21669713.
Sánchez-Tena, Susana; Fernández-Cachón, María L.; Carreras, Anna; Mateos-Martín, M. Luisa; Costoya, Noelia; Moyer, Mary P.; Nuñez, María J.; Torres, Josep L.; Cascante, Marta (January 4, 2012). "Hamamelitannin from Witch Hazel (Hamamelis virginiana) Displays Specific Cytotoxic Activity against Colon Cancer Cells". J. Nat. Prod. 75 (1): 26–33. doi:10.1021/np200426k. PMID22216935.
Anderson & Hill (2002), p. 67. Anderson, Gregory J.; Hill, James D. (2002). "Many to flower, few to fruit: the reproductive biology of Hamamelis virginiana (Hamamelidaceae)". American Journal of Botany. 89 (1): 67–78. doi:10.3732/ajb.89.1.67. PMID21669713.
Anderson & Hill (2002), p. 68. Anderson, Gregory J.; Hill, James D. (2002). "Many to flower, few to fruit: the reproductive biology of Hamamelis virginiana (Hamamelidaceae)". American Journal of Botany. 89 (1): 67–78. doi:10.3732/ajb.89.1.67. PMID21669713.
Sánchez-Tena, Susana; Fernández-Cachón, María L.; Carreras, Anna; Mateos-Martín, M. Luisa; Costoya, Noelia; Moyer, Mary P.; Nuñez, María J.; Torres, Josep L.; Cascante, Marta (January 4, 2012). "Hamamelitannin from Witch Hazel (Hamamelis virginiana) Displays Specific Cytotoxic Activity against Colon Cancer Cells". J. Nat. Prod. 75 (1): 26–33. doi:10.1021/np200426k. PMID22216935.