@article{MABA_1994_8_4_a5,
     author = {N. Kjurkchiev and A. Andreev},
     title = {On the {R-Order} of {Convergence} of {Classes} of {Iterative} {Methods}},
     journal = {Mathematica balkanica},
     pages = {351},
     publisher = {mathdoc},
     volume = {8},
     number = {4},
     year = {1994},
     url = {http://geodesic.mathdoc.fr/item/MABA_1994_8_4_a5/}
}