@article{Caswell1978,
author = {Caswell, H.},
title= {A general formula for the sensitivity of population growth rate to changes in life history parameters},
year = {1978},
doi = {10.1016/0040-5809(78)90025-4},
journal = {Theoretical Population Biology},
volume = {14},
number = {2},
pages = {215--230},
}