@article{RSMUP_1968__41__276_0,
     author = {Bank, Steven},
     title = {An existence theorem for solutions of second order non-linear ordinary differential equations in the complex domain},
     journal = {Rendiconti del Seminario Matematico della Universit\`a di Padova},
     pages = {276--299},
     publisher = {Seminario Matematico of the University of Padua},
     volume = {41},
     year = {1968},
     mrnumber = {251283},
     zbl = {0187.33401},
     language = {en},
     url = {http://archive.numdam.org/item/RSMUP_1968__41__276_0/}
}