@article{10_1017_S0017089507003667,
     author = {PHILOS, CH. G.},
     title = {POSITIVE {INCREASING} {SOLUTIONS} {ON} {THE} {HALF-LINE} {TO} {SECOND} {ORDER} {NONLINEAR} {DELAY} {DIFFERENTIAL} {EQUATIONS}},
     journal = {Glasgow mathematical journal},
     pages = {197--211},
     year = {2007},
     volume = {49},
     number = {2},
     doi = {10.1017/S0017089507003667},
     url = {http://geodesic.mathdoc.fr/articles/10.1017/S0017089507003667/}
}