@article{10_1017_S0017089500008776,
     author = {Selivanov, Yu. V.},
     title = {Homological characterizations of the approximation property for {Banach} spaces},
     journal = {Glasgow mathematical journal},
     pages = {229--239},
     year = {1992},
     volume = {34},
     number = {2},
     doi = {10.1017/S0017089500008776},
     url = {http://geodesic.mathdoc.fr/articles/10.1017/S0017089500008776/}
}