@article {43605,
	title = {Use of C-13 tracers to determine mass-transfer limitations on thermal cracking of thin films of bitumen},
	volume = {15},
	year = {2001},
	pages = {1087-1093},
	publisher = {Energy \& Fuels},
	author = {Dutta, R. P. and McCaffrey, W. C. and Gray, M. R. and Muehlenbachs, K.}
}
