PURINI, R., A. ROVELLI, and E. SALUSTI. “A Brief Review of Mathematical Models Concerning the Vertical Variation of the Water Density in the Sea”. Annals of Geophysics 29, no. 4 (November 25, 1976): 215–236. Accessed April 25, 2024. https://www.annalsofgeophysics.eu/index.php/annals/article/view/4805.