@article{10_4064_aa_56_4_291_323,
     author = {Michael Fried and Pierre Debes},
     title = {Rigidity and real residue class fields},
     journal = {Acta Arithmetica},
     pages = {291--323},
     publisher = {mathdoc},
     volume = {56},
     number = {4},
     year = {1990},
     doi = {10.4064/aa-56-4-291-323},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/aa-56-4-291-323/}
}