@article{journal,
author = {Örstan, A. and Pearce, T. A. and Welter-Schultes, F.},
title = {Land snail diversity in a threatened limestone district near Istanbul, Turkey},
year = {2005},
volume = {28.2},
pages = {181--188},
journal = {Animal Biodiversity and Conservation},
keywords = {Biodiversidad, Conservaci{\'o}n, Estambul, Pulmonata, Prosobranchia}
}