Zimmerman, George L., and Duff Crerar. “‘The Gates’ at Our Gates: F.R. (Hamish) Berchem and the Role of the Eastern Based Porte-Class Gate Vessels After Canadian Armed Forces Unification”. The Northern Mariner Le Marin Du Nord, vol. 32, no. 3, May 2023, pp. 315-40, doi:10.25071/2561-5467.998.