{
'Python:Primer:09':
"""
H. P. Langtangen.
*A Primer on Scientific Programming with Python*.
Springer, 2009.
""",

'Osnes:98':
"""
H. Osnes and H. P. Langtangen.
An efficient probabilistic finite element method for stochastic 
groundwater flow.
*Advances in Water Resources*, vol 22, 185-195, 1998.
"""
}
