1. Noise barrier evaluation and alternatives for highway noise control;Harmelink;Ontario Ministry of Transportation and Communications, Research and Development Division, Report No. RR 180,1972
2. Noise reduction by privacy fence;Hajek;Ontario Ministry of Transportation and Communications, Research and Development Division, Internal Report,1975
3. Noise barrier attenuation—Highway 401 South side, Dixon Rd. to Kipling Ave., Toronto;May;Ontario Ministry of Transportation and Communications, Research and Development Division, Report 77-AC-09,1977
4. Noise barrier attenuation—Highway 417 North side, Melrose Ave. to Loretta Ave., Ottawa;May;Ontario Ministry of Transportation and Communications, Research and Development Division, Report 78-AC-13,1978
5. Highway noise barrier location for maximum benefit/cost;Andrew;Journal of Sound and Vibration,1980