@article{10_4153_CJM_1971_046_4,
     author = {Harris, Douglas},
     title = {An {Internal} {Characterization} of {Realcompactness}},
     journal = {Canadian journal of mathematics},
     pages = {439--444},
     year = {1971},
     volume = {23},
     number = {3},
     doi = {10.4153/CJM-1971-046-4},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-1971-046-4/}
}