@article{10_4153_CJM_1988_052_4,
     author = {Allegretto, W. and Huang, Y. X.},
     title = {Existence of {Positive} {Global} {Solutions} of {Mixed} {Sublinear-Superlinear} {Problems}},
     journal = {Canadian journal of mathematics},
     pages = {1222--1242},
     year = {1988},
     volume = {40},
     number = {5},
     doi = {10.4153/CJM-1988-052-4},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-1988-052-4/}
}