@article{PORMA_1982__41_1-4_115502,
     author = {Boudourides, Moises A.},
     title = {Topogical equivalence of monotone nonlinear nonautonomous differential equations},
     journal = {Portugaliae mathematica},
     pages = {287--294},
     publisher = {mathdoc},
     volume = {41},
     number = {1-4},
     year = {1982},
     mrnumber = {0766858},
     zbl = {0569.34035},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/PORMA_1982__41_1-4_115502/}
}