@Article{,
 author	     = {Jarno Vanhatalo and Jaakko Riihim{\"a}ki and Jouni
                Hartikainen and Pasi Jyl{\"a}nki and Ville Tolvanen and Aki Vehtari},
 title	     = {{GPstuff}: {Bayesian} Modeling with {Gaussian}
                Processes},
 journal     = {Journal of Machine Learning Research},
 year	     = {2013},
 volume      = {14},
 pages       = {1175-1179}
}