@article{journal,
author = {Fowler, C. and Hobbs, L.},
title = {Limits to natural variation: implications for systemic management},
year = {2002},
volume = {25.2},
pages = {7--45},
journal = {Animal Biodiversity and Conservation},
keywords = {Manejo o gesti{\'o}n sist{\'e}mica, L{\'i}mites, Variaci{\'o}n, Ecosistemas, Especies individuales, Recursos}
}