1. Wombles, Robert H., Baron, John Thomas, "Laboratory Anode Comparison of Chinese Modified Pitch and Vacuum Distilled Pitch", TMS Light Metals 2006.
2. Wombles, Robert H., Sadler, Barry, "The Effect of Binder Pitch Quinoline Insolubles Content on Aluminum Anode Physical Properties", 8th Australasian Aluminium Smelting Technology Conference, 2004.
3. Wombles Robert H., Kiser, Melvin D., Developing Coal Tar/Petroleum Pitches", TMS Light Metals 2000.
4. Sorlie, Morten, “Pitch Quality-As Seen from a Users Side”, 9th Australasian Aluminium Smelter Conference, 2005.