@article{10_4153_CJM_1994_062_3,
     author = {Wehrung, Friedrich},
     title = {The {Universal} {Theory} of {Ordered} {Equidecomposability} {Types} {Semigroups}},
     journal = {Canadian journal of mathematics},
     pages = {1093--1120},
     year = {1994},
     volume = {46},
     number = {5},
     doi = {10.4153/CJM-1994-062-3},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-1994-062-3/}
}