@article{10_4064_aa_33_1_11_28,
     author = {K. Kubota},
     title = {On a conjecture of {Morgan} {Ward,} {I}},
     journal = {Acta Arithmetica},
     pages = {11--28},
     publisher = {mathdoc},
     volume = {33},
     number = {1},
     year = {1977},
     doi = {10.4064/aa-33-1-11-28},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/aa-33-1-11-28/}
}