@article {zhang2008power,
	title = {Power Spectral Analysis of EEG Activity During Sleep in Cigarette Smokers},
	journal = {Chest},
	volume = {133},
	number = {2},
	year = {2008},
	pages = {427{\textendash}432},
	publisher = {Am Coll Chest Phys},
	author = {Zhang, L and Samet, J and Caffo, B and Bankman, I and Punjabi, N}
}
