@article{NUMA_1993__65_4_133749,
     author = {L.-Q. Zhang and G.-Q. Han},
     title = {Optimal homotopy methods for solving nonlinear systems. {Part} 1. {Nonsingular} homotopy paths.},
     journal = {Numerische Mathematik},
     pages = {523--538},
     publisher = {mathdoc},
     volume = {65},
     number = {4},
     year = {1993},
     zbl = {0797.65045},
     url = {http://geodesic.mathdoc.fr/item/NUMA_1993__65_4_133749/}
}