@article {Wald1975,
title = {Bi2S3 as a high Z material for γ-ray detectors},
journal = {IEEE Transactions on Nuclear Science},
volume = {22},
year = {1975},
month = {Jan-02-1975},
pages = {246 - 250},
issn = {0018-9499},
doi = {10.1109/TNS.1975.4327646},
url = {http://ieeexplore.ieee.org/lpdocs/epic03/wrapper.htm?arnumber=4327646},
author = {Wald, F. V. and Bullitt, J. and Bell, R. O.}
}