@article{ETNA_2008__31__a7,
     author = {Baur, Ulrike and Benner, Peter},
     title = {Cross-Gramian based model reduction for data-sparse systems},
     journal = {Electronic transactions on numerical analysis},
     pages = {256--270},
     publisher = {mathdoc},
     volume = {31},
     year = {2008},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ETNA_2008__31__a7/}
}