@article{ETNA_2008__29__a13,
     author = {Schmelzer, Thomas and Trefethen, Lloyd N.},
     title = {Evaluating matrix functions for exponential integrators via {Carath\'eodory-Fej\'er} approximation and contour integrals},
     journal = {Electronic transactions on numerical analysis},
     publisher = {mathdoc},
     volume = {29},
     year = {2008},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ETNA_2008__29__a13/}
}