https://catalogue-scientifique.canada.ca/record=3764002~S6*frc
Hydraulics Division, [National Water Research Institute], 1983
"Six cores, 9 cm in diameter and ranging from 4.1 to 12.2 m in length, were collected from the Pelee Shoal (Fig. 1, Table 1) using a Vibracore apparatus....
Publication gouvernementale