BibTex format
@article{Mathias:2007:10.1029/2006WR005279,
author = {Mathias, SA and Butler, AP},
doi = {10.1029/2006WR005279},
journal = {WATER RESOUR RES},
title = {Shape factors for constant-head double-packer permeameters},
url = {http://dx.doi.org/10.1029/2006WR005279},
volume = {43, W06430},
year = {2007}
}