@article {44137,
	title = {Quality of distillates from repeated recycle of residue},
	volume = {16},
	year = {2002},
	pages = {477-484},
	publisher = {Energy \& Fuels},
	author = {Japanwala, S. and Chung, K. H. and Dettman, H. D. and Gray, M. R.}
}
