@article{AIHPC_2013__30_3_385_0,
     author = {Khanin, Konstantin and Koci\'c, Sa\v{s}a},
     title = {Absence of robust rigidity for circle maps with breaks},
     journal = {Annales de l'I.H.P. Analyse non lin\'eaire},
     pages = {385--399},
     publisher = {Elsevier},
     volume = {30},
     number = {3},
     year = {2013},
     doi = {10.1016/j.anihpc.2012.08.004},
     mrnumber = {3061428},
     zbl = {06295425},
     language = {en},
     url = {http://archive.numdam.org/articles/10.1016/j.anihpc.2012.08.004/}
}