BibTex format
@article{PROPPER:1990:10.2307/2234196,
author = {PROPPER, C},
doi = {10.2307/2234196},
journal = {ECONOMIC JOURNAL},
pages = {193--199},
title = {CONTINGENT VALUATION OF TIME SPENT ON NHS WAITING LISTS},
url = {http://dx.doi.org/10.2307/2234196},
volume = {100},
year = {1990}
}