@article{GDZPPN001168924, title = {Note on an Inverse Characteristic Value Problem.}, journal = {Numerische Mathematik}, volume = {15}, year = {1970}, pages = {345-347}, zbl = {0202.03504}, url = {http://dml.mathdoc.fr/item/GDZPPN001168924} }
OLIVEIRA, G.N. de. Note on an Inverse Characteristic Value Problem.. Numerische Mathematik, Tome 15 (1970) pp. 345-347. http://gdmltest.u-ga.fr/item/GDZPPN001168924/