Fixed points of polynomial maps. I. Rotation subsets of the circles
Annales scientifiques de l'École Normale Supérieure, Série 4, Tome 25 (1992) no. 6, p. 679-685 
@article{ASENS_1992_4_25_6_679_0,
     author = {Goldberg, Lisa},
     title = {Fixed points of polynomial maps. I. Rotation subsets of the circles},
     journal = {Annales scientifiques de l'\'Ecole Normale Sup\'erieure},
     publisher = {Elsevier},
     volume = {Ser. 4, 25},
     number = {6},
     year = {1992},
     pages = {679-685},
     doi = {10.24033/asens.1663},
     zbl = {0771.30027},
     mrnumber = {94g:58178},
     language = {en},
     url = {http://http://www.numdam.org/item/ASENS_1992_4_25_6_679_0}
}

Goldberg, Lisa R. Fixed points of polynomial maps. I. Rotation subsets of the circles. Annales scientifiques de l'École Normale Supérieure, Série 4, Tome 25 (1992) no. 6, pp. 679-685. doi : 10.24033/asens.1663. http://www.numdam.org/item/ASENS_1992_4_25_6_679_0/