@article{Demetrius1969,
author = {Demetrius, Lloyd},
title= {The sensitivity of population growth rate to pertubations in the life cycle components},
year = {1969},
doi = {10.1016/0025-5564(69)90009-1},
journal = {Mathematical Biosciences},
volume = {4},
number = {1–2},
pages = {129 -- 136},
}