@article{10_4153_CJM_1982_052_1,
     author = {Yoneda, Kaoru},
     title = {Perfect {Sets} of {Uniqueness} on the {Group} 2\ensuremath{\omega}},
     journal = {Canadian journal of mathematics},
     pages = {759--764},
     year = {1982},
     volume = {34},
     number = {3},
     doi = {10.4153/CJM-1982-052-1},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-1982-052-1/}
}