@article{10_4153_CJM_1970_077_5,
     author = {Franklin, S. P. and Kohli, J. K.},
     title = {On {Open} {Extensions} of {Maps}},
     journal = {Canadian journal of mathematics},
     pages = {691--696},
     year = {1970},
     volume = {22},
     number = {3},
     doi = {10.4153/CJM-1970-077-5},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-1970-077-5/}
}