@article{NUMA_1976__27_132449,
     author = {E.K. Ifantis and C.B. Kouris},
     title = {Lower {Bounds} for the {Zeros} of {Analytic} {Functions.}},
     journal = {Numerische Mathematik},
     pages = {239--248},
     publisher = {mathdoc},
     volume = {27},
     year = {1976},
     zbl = {0326.65031},
     url = {http://geodesic.mathdoc.fr/item/NUMA_1976__27_132449/}
}