@article{10_4064_fm171_3_1,
     author = {Alexis B\`es},
     title = {Decidability and definability results
 related to the elementary theory of ordinal multiplication},
     journal = {Fundamenta Mathematicae},
     pages = {197--211},
     publisher = {mathdoc},
     volume = {171},
     number = {3},
     year = {2002},
     doi = {10.4064/fm171-3-1},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/fm171-3-1/}
}