@article {76246,
	title = {The Activation Concept: Application of Hybridized Orbitals in Some Mechanisms of Bimolecular Organic Reactions},
	journal = {Northwest Science},
	volume = {22},
	year = {1948},
	pages = {155-163},
	author = {Zimmerman, Howard K., Jr. and Van Rysselberghe, Pierre}
}
