@article{10_4064_cm129_1_6,
     author = {Jason Greene Boynton},
     title = {Atomicity and the fixed divisor in certain
 pullback constructions},
     journal = {Colloquium Mathematicum},
     pages = {87--97},
     publisher = {mathdoc},
     volume = {129},
     number = {1},
     year = {2012},
     doi = {10.4064/cm129-1-6},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/cm129-1-6/}
}