Asymptotic behavior of non-linear differential equations via non-standard analysis. Part III. Boundedness and monotone behavior of the equation (a(t)φ(x)x')' + c(t)f(x) = q(t)
Tom 38 / 1980
Annales Polonici Mathematici 38 (1980), 101-108
DOI: 10.4064/ap-38-2-101-108
