@article {SC.4.Osnes.1998.f,
	title = {An Improved Probabilistic Finite Element Method for Stochastic Groundwater Flow},
	journal = {Advances in Water Resources},
	volume = {22},
	year = {1998},
	pages = {185-195,},
	author = {Osnes, Harald and Hans Petter {Langtangen}}
}
