@article{10_4064_am34_2_4,
     author = {Ioannis K. Argyros},
     title = {On the gap between the semilocal
 convergence domains of two {Newton} methods},
     journal = {Applicationes Mathematicae},
     pages = {193--204},
     publisher = {mathdoc},
     volume = {34},
     number = {2},
     year = {2007},
     doi = {10.4064/am34-2-4},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/am34-2-4/}
}