@article{KK1972,
  author = {Kadison, Richard V. and Kastler, Daniel},
  title = {Perturbations of von {Neumann} algebras. {I}. {Stability} of type},
  journal = {American Journal of Mathematics},
  volume = {94},
  number = {1},
  year = {1972},
  pages = {38--54},
  doi = {10.2307/2373592}
}

@article{Chr1977,
  author = {Christensen, Erik},
  title = {Perturbation of operator algebras},
  journal = {Inventiones Mathematicae},
  volume = {43},
  number = {1},
  year = {1977},
  pages = {1--13},
  doi = {10.1007/BF01390201}
}

@article{Joh1977,
  author = {Johnson, Barry E.},
  title = {Perturbations of {Banach} algebras},
  journal = {Proceedings of the London Mathematical Society},
  series = {3},
  volume = {34},
  number = {3},
  year = {1977},
  pages = {439--458},
  doi = {10.1112/plms/s3-34.3.439}
}

@article{RT1977,
  author = {Raeburn, Iain and Taylor, Joseph L.},
  title = {Hochschild cohomology and perturbations of {Banach} algebras},
  journal = {Journal of Functional Analysis},
  volume = {25},
  number = {3},
  year = {1977},
  pages = {258--266},
  doi = {10.1016/0022-1236(77)90072-6}
}

@article{Chr1980,
  author = {Christensen, Erik},
  title = {Near inclusions of {$C^*$}-algebras},
  journal = {Acta Mathematica},
  volume = {144},
  year = {1980},
  pages = {249--265},
  doi = {10.1007/BF02392125}
}

@article{CCSSWW2012,
  author = {Cameron, Jan and Christensen, Erik and Sinclair, Allan M. and
            Smith, Roger R. and White, Stuart A. and Wiggins, Alan D.},
  title = {Type {$\mathrm{II}_1$} factors satisfying the spatial isomorphism conjecture},
  journal = {Proceedings of the National Academy of Sciences of the United States of America},
  volume = {109},
  number = {50},
  year = {2012},
  pages = {20338--20343},
  doi = {10.1073/pnas.1217792109}
}

@article{Haa1979,
  author = {Haagerup, Uffe},
  title = {An example of a non nuclear {$C^*$}-algebra, which has the metric approximation property},
  journal = {Inventiones Mathematicae},
  volume = {50},
  number = {3},
  year = {1979},
  pages = {279--293},
  doi = {10.1007/BF01410082}
}

@article{PS1986,
  author = {Pytlik, Tadeusz and Szwarc, Ryszard},
  title = {An analytic family of uniformly bounded representations of free groups},
  journal = {Acta Mathematica},
  volume = {157},
  number = {3--4},
  year = {1986},
  pages = {287--309},
  doi = {10.1007/BF02392596}
}

@article{Voi1983,
  author = {Voiculescu, Dan},
  title = {Asymptotically commuting finite rank unitary operators without commuting approximants},
  journal = {Acta Scientiarum Mathematicarum (Szeged)},
  volume = {45},
  year = {1983},
  pages = {429--431}
}

@article{EL1989,
  author = {Exel, Ruy and Loring, Terry A.},
  title = {Almost commuting unitary matrices},
  journal = {Proceedings of the American Mathematical Society},
  volume = {106},
  number = {4},
  year = {1989},
  pages = {913--915},
  doi = {10.1090/S0002-9939-1989-0975641-9}
}

@article{Exel1993,
  author = {Exel, Ruy},
  title = {The soft torus and applications to almost commuting matrices},
  journal = {Pacific Journal of Mathematics},
  volume = {160},
  number = {2},
  year = {1993},
  pages = {207--217},
  doi = {10.2140/pjm.1993.160.207}
}