@article{10_4064_fm222_2_3,
     author = {A. Chigogidze},
     title = {Extension properties of {Stone{\textendash}\v{C}ech} coronas and
 proper absolute extensors},
     journal = {Fundamenta Mathematicae},
     pages = {155--173},
     publisher = {mathdoc},
     volume = {222},
     number = {2},
     year = {2013},
     doi = {10.4064/fm222-2-3},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/fm222-2-3/}
}