"Diving for historical and scientific purposes". Society for Underwater Technology. Society for Underwater Technology / Marine Technology News. October 5, 2021. Archived from the original on December 12, 2021. Retrieved January 1, 2022.
"Diving for historical and scientific purposes". Society for Underwater Technology. Society for Underwater Technology / Marine Technology News. October 5, 2021. Archived from the original on December 12, 2021. Retrieved January 1, 2022.