@article{PIM_1971_N_S_12_26_a13,
     author = {Jovan J. Petri\'c and Slavi\v{s}a B. Pre\v{s}i\'c},
     title = {An {Algorithm} {For} {The} {Solution} {Of} {A} 2 {\texttimes} 2 {System} {Of} {Nonlinear} {Algebraic} {Equations}},
     journal = {Publications de l'Institut Math\'ematique},
     pages = {85 },
     publisher = {mathdoc},
     volume = {_N_S_12},
     number = {26},
     year = {1971},
     url = {http://geodesic.mathdoc.fr/item/PIM_1971_N_S_12_26_a13/}
}