@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} }