BibTex format
@article{Engen:2013:10.1086/670257,
author = {Engen, S and Lande, R and Saether, B-E},
doi = {10.1086/670257},
journal = {AMERICAN NATURALIST},
pages = {725--736},
title = {A Quantitative Genetic Model of <i>r</i>- and <i>K</i>-Selection in a Fluctuating Population},
url = {http://dx.doi.org/10.1086/670257},
volume = {181},
year = {2013}
}