@article{NUMA_1979__33_132649,
     author = {J.B. Kioustelidis},
     title = {A {Derivative-Free} {Transformation} {Preserving} the {Order} of {Convergence} of {Iteration} {Methods} in {Case} of {Multiple} {Zeros.}},
     journal = {Numerische Mathematik},
     pages = {385--390},
     publisher = {mathdoc},
     volume = {33},
     year = {1979},
     zbl = {0422.65033},
     url = {http://geodesic.mathdoc.fr/item/NUMA_1979__33_132649/}
}