Franse troepen trekken over de Lek 15 januari 1795 / tekst van J.J. Moerman Artillery Training. Volume IV. Part I. Pamphlet no. 45. A.A. Gunnery. Electrical Devices. WO 7119 Signal Training Pamphlet no. 3. Part I. Waterproving of signal equipment for protection during wading. (Provisional). WO 7570