@article{PORMA_1951__10_2_114513,
     author = {Michiura, Tadashi},
     title = {On simply ordered groups},
     journal = {Portugaliae mathematica},
     pages = {89--95},
     publisher = {mathdoc},
     volume = {10},
     number = {2},
     year = {1951},
     mrnumber = {0043797},
     zbl = {0043.02101},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/PORMA_1951__10_2_114513/}
}