@article{ELA_2010__20__a11,
     author = {Soto, Ricardo L. and Salas, Mario and Manzaneda, Cristina},
     title = {Nonnegative realization of complex spectra},
     journal = {The electronic journal of linear algebra},
     pages = {595--609},
     publisher = {mathdoc},
     volume = {20},
     year = {2010},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ELA_2010__20__a11/}
}