@article{1255629651, author = {Marcus, M. and Greiner, P.}, title = {On the unitary completion of a matrix}, journal = {Illinois J. Math.}, volume = {5}, number = {1}, year = {1961}, pages = { 152-158}, language = {en}, url = {http://dml.mathdoc.fr/item/1255629651} }
Marcus, M.; Greiner, P. On the unitary completion of a matrix. Illinois J. Math., Tome 5 (1961) no. 1, pp. 152-158. http://gdmltest.u-ga.fr/item/1255629651/