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@article{NUMA_1987__52_5_133248, author = {R.S. Varga and G. Csordas and T.S. Norfolk}, title = {A {Lower} {Bound} for the de {Bruijn-Newman} {Constant} ... .}, journal = {Numerische Mathematik}, pages = {483--498}, publisher = {mathdoc}, volume = {52}, number = {5}, year = {1987}, zbl = {0663.65017}, url = {http://geodesic.mathdoc.fr/item/NUMA_1987__52_5_133248/} }
R.S. Varga; G. Csordas; T.S. Norfolk. A Lower Bound for the de Bruijn-Newman Constant ... .. Numerische Mathematik, Tome 52 (1987) no. 5, pp. 483-498. http://geodesic.mathdoc.fr/item/NUMA_1987__52_5_133248/