@article{10_4064_cm113_2_11,
     author = {Yosuke Sakai},
     title = {An elementary exact sequence of modules
 with an application to tiled orders},
     journal = {Colloquium Mathematicum},
     pages = {307--318},
     publisher = {mathdoc},
     volume = {113},
     number = {2},
     year = {2008},
     doi = {10.4064/cm113-2-11},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/cm113-2-11/}
}