Cur11, "Coles Station: From Prototype to Model" (On3), p, s. Derr, "Modifying Your EBT M-1" (On3). Kutta, "60 Years of Service: EBT's M-1," p. Mellander, "C&BT Car Shops Releases HOn3 Hopper Kits/Upgrade Kit Now Available for C&BT HOn3 Hopper," review, p; "Interpreting the ICC Valuation Maps of the EBT," m, p. Mitzelfeld and Padgett, "Upgrading the C&BT Hopper," p.
Abbreviations denote the following features: g (graph), m (map), p (photograph), and s (sketch or non-photographic illustration).
