[1] “Accident Reports: Conveyor Roller,” Occupational Safety and Health Administration. Washington, DC. 2018. https://www.osha.gov/pls/imis/AccidentSearch.search?acc_keyword=%22Roller%20Conveyor%22&keyword_list=on

[2] Swinderman, Todd; Marti, Andrew D.; Marshall, Daniel: Foundations for Conveyor Safety, Martin Engineering, Section 1, pp. 8-26. Worzalla Publishing Company, Stevens Point, Wisconsin; 2016. https://www.martin-eng.com/content/product/690/safety-book

[3] “Conveyors,” Occupational Health and Safety Administration 1926.555(a)(8), Washington, DC; 2018. https://www.osha.gov/pls/oshaweb/owadisp.show_document?p_id=10765&p_table=STANDARDS

[4] Webb, J.C. “Safety Code for Conveyors, Cableways, and Related Equipment,” American National Standards Institute ANSI B20.1-1957; The American Society of Mechanical Engineers.

[5] Swinderman, Todd; Marti, Andrew D.; Marshall, Daniel: Foundations for Conveyor Safety; Martin Engineering, Ch.1, pg.13. Worzalla Publishing Company, Stevens Point, Wisconsin, 2016. https://www.martin-eng.com/content/product/690/safety-book