@book{29053,
	author = {International Workshop on Bifurcations & Instabilities in Geomechanics and Labuz, J. F.},
	title = {Bifurcations & instabilities in geomechanics :},
	publisher = {A. A. Balkema,},
	year = {2003},
	address = {Exton, PA :},
	url = {http://www.loc.gov/catdir/toc/fy0602/2004267069.html}
}