@article{HHA_2009_11_1_a5,
     author = {A.Yu. Pirkovskii},
     title = {Flat cyclic {Fr\'echet} modules, amenable {Fr\'echet} algebras, and approximate identities},
     journal = {Homology, homotopy, and applications},
     pages = {81--114},
     publisher = {mathdoc},
     volume = {11},
     number = {1},
     year = {2009},
     doi = {10.4310/HHA.2009.v11.n1.a5},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4310/HHA.2009.v11.n1.a5/}
}