ŘEHÁK, Pavel. Asymptotic behavior of increasing solutions to a system of n nonlinear differential equations. Nonlinear Analysis: Theory, Methods & Applications. 2013, 77(January 12), 45-58. ISSN 0362-546X. E-ISSN 1873-5215. Available: https://doi.org/10.1016/j.na.2012.08.019.