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Horstmann: Control Your Street Lighting
Published in: Public Lighting Engineer Vol. 19, No. 80, June 1954
Published in: Public Lighting Engineer Vol. 20, No. 84, March 1955
Published in: Public Lighting Engineer Vol. 20, No. 86, September 1955
Published in: Public Lighting Engineer Vol. 21, No. 90, June 1956
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