@article{10_4153_CJM_1981_108_1,
     author = {Brandenburg, Harald},
     title = {Separating {Closed} {Sets} by {Continuous} {Mappings} into {Developable} {Spaces}},
     journal = {Canadian journal of mathematics},
     pages = {1420--1431},
     year = {1981},
     volume = {33},
     number = {6},
     doi = {10.4153/CJM-1981-108-1},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-1981-108-1/}
}