@article{10_4064_fm_1997_152_1_1_21_41,
     author = {Alan Dow},
     title = {Extending real-valued functions in $\beta_k$},
     journal = {Fundamenta Mathematicae},
     pages = {21--41},
     publisher = {mathdoc},
     volume = {152},
     number = {1},
     year = {1997},
     doi = {10.4064/fm_1997_152_1_1_21_41},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/fm_1997_152_1_1_21_41/}
}