@article{10_4153_CJM_1983_035_6,
     author = {Chattopadhyay, K. C. and Nj\r{a}stad, Olav and Thron, W. J.},
     title = {Merotopic {Spaces} and {Extensions} of {Closure} {Spaces}},
     journal = {Canadian journal of mathematics},
     pages = {613--629},
     year = {1983},
     volume = {35},
     number = {4},
     doi = {10.4153/CJM-1983-035-6},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-1983-035-6/}
}