@article{10_4064_fm174_3_7,
     author = {A. Bella and A. Dow and K. P. Hart and M. Hrusak and J. van Mill and P. Ursino},
     title = {Embeddings into ${\cal P}({\Bbb N})/{\rm fin}$ and extension of automorphisms},
     journal = {Fundamenta Mathematicae},
     pages = {271--284},
     publisher = {mathdoc},
     volume = {174},
     number = {3},
     year = {2002},
     doi = {10.4064/fm174-3-7},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/fm174-3-7/}
}