@article{Gompertz1825,
author = {Gompertz, Benjamin},
title= {On the Nature of the Function Expressive of the Law of Human Mortality, and on a New Mode of Determining the Value of Life Contingencies},
year = {1825},
doi = {10.1098/rstl.1825.0026},
journal = {Philosophical Transactions of the Royal Society of London},
volume = {115},
pages = {513--583},
}