% pubman genre = article
@article{item_3373323,
title = {{The effort factor: Evaluating the increasing marginal impact of resource extraction over time}},
author = {Davidson, Debra J. and Andrews, Jeffrey B. and Pauly, Daniel},
language = {eng},
issn = {0959-3780},
doi = {10.1016/j.gloenvcha.2014.02.001},
publisher = {Elsevier},
address = {Amsterdam [u.a.]},
year = {2014},
journal = {{Global Environmental Change}},
volume = {25},
pages = {63--68},
}