@article{700144,
     title = {On the asymptotic behavior of solutions of nonlinear ordinary differential equations},
     booktitle = {Equadiff 6},
     series = {GDML\_Books},
     publisher = {J. E. Purkyn\v e University, Department of Mathematics},
     address = {Brno},
     year = {1986},
     pages = {465-468},
     mrnumber = {MR0881673},
     url = {http://dml.mathdoc.fr/item/700144}
}

Kusano, Takaŝi. On the asymptotic behavior of solutions of nonlinear ordinary differential equations, dans Equadiff 6, GDML_Books,  (1986), pp. 465-468. http://gdmltest.u-ga.fr/item/700144/