@article{10_4153_CJM_1980_047_0,
     author = {Marshall, Murray},
     title = {Spaces of {Orderings} {IV}},
     journal = {Canadian journal of mathematics},
     pages = {603--627},
     year = {1980},
     volume = {32},
     number = {3},
     doi = {10.4153/CJM-1980-047-0},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-1980-047-0/}
}