1. Aarnes, J.E., Kippe, V., Lie, K.A., Rustad, A.B.: Modelling of multiscale structures in flow simulations for petroleum reservoirs. In: Hasle, G., Lie, K.A., Quak, E. (eds.): Geometric Modelling, Numerical Simulation, and Optimization, chap. 10, pp. 307–360. Springer, Berlin/Heidelberg (2007). doi: http://dx.doi.org/10.1007/978-3-540-68783-2_10 10.1007/978-3-540-68783-2_10
2. Alvarez, M., Lawrence, N.D.: Sparse convolved Gaussian processes for multi-output regression. In: Koller, D., Schuurmans, D., Bengio, Y., and Bottou. L. (eds.): Advances in Neural Information Processing Systems 21 (NIPS 2008), Vancouver, B.C., Canada (2008)
3. Alvarez, M., Luengo-Garcia, D., Titsias, M., Lawrence, N.: Efficient multioutput Gaussian processes through variational inducing kernels. In: Ft. Lauderdale, FL, USA (2011)
4. Babuska, I., Nobile, F., Tempone, R.: A stochastic collocation method for elliptic partial differential equations with random input data. SIAM J. Numer. Anal. 45(3), 1005–1034 (2007)
5. Betz, W., Papaioannou, I., Straub, D.: Numerical methods for the discretization of random fields by means of the Karhunen-Loeve expansion. Comput. Methods Appl. Mech. Eng. 271, 109–129 (2014). doi:10.1016/j.cma.2013.12.010