@article{ZNSL_2004_309_a2,
     author = {Kh. D. Ikramov and M. Matin far},
     title = {On the computer-algebra implementation of the least-squares method on the nonnegative orthant},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {23--29},
     publisher = {mathdoc},
     volume = {309},
     year = {2004},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_2004_309_a2/}
}