Batchvarov, Kroum (3 July 2021). "The Merchant Ship in the British Atlantic, 1600–1800: Continuity and Innovation in a Key Technology". International Journal of Nautical Archaeology. 50 (2): 403–406. Bibcode:2021IJNAr..50..403B. doi:10.1080/10572414.2021.1987716.
Batchvarov, Kroum (3 July 2021). "The Merchant Ship in the British Atlantic, 1600–1800: Continuity and Innovation in a Key Technology". International Journal of Nautical Archaeology. 50 (2): 403–406. Bibcode:2021IJNAr..50..403B. doi:10.1080/10572414.2021.1987716.