Du choc des opinions jaillit la vérité / Niclou Demonstration of the Contraves H.A.A. predictor F/90 Artillery training. Vol IV : Systems of fire control for unseen targets (H.A.A.) Algerië en Atjeh / [H.A.A.] Niclou Mijne repliek aan 67 / Niclou Artillery Training. Volume IV. Part I. Pamphlet no. 20. A.A. Gunnery, Fire Control With Plotting Equipment (H.A.A). WO 7086 Artillery Training. Volume IV. Part I. Pamphlet no. 9. Gunnery. Deflections and Rates of Change (H.A.A). WO 7113 Artillery Training. Volume IV. Part I. Pamphlet no. 12. A.A. Gunnery. Preparation for action and fire discipline (H.A.A). WO 7123
