@article{Chay2003,
author = {Chay, K. and Dobkin, C. and Greenstone, M.},
title= {The clean air act of 1970 and adult mortality},
year = {2003},
doi = {10.1023/A:1025897327639},
journal = {Journal of Risk and Uncertainty},
volume = {27},
number = {3},
pages = {279--300},
}