@article{Hill1993,
author = {Hill, G.},
title= {The Entropy of the Survival Curve: An Alternative Measure},
year = {1993},
URL = {http://ejournals.library.ualberta.ca/index.php/subsc/article/view/13894},
journal = {Canadian Studies in Population},
volume = {20},
pages = {43--57},
}