@article{journal,
author = {Chen, X.},
title = {Topological properties in the spatial distribution of amphibians in Alabama USA for the use of large scale conservation},
year = {2008},
volume = {31.1},
pages = {1--13},
journal = {Animal Biodiversity and Conservation},
keywords = {Amphibians, Clustering coefficient, Distance to nearest-neighbor, Fractal dimension, Topology}
}