@incollection {MR0786473,
    AUTHOR = {Bekkali, Mohamed and Bonnet, Robert},
     TITLE = {On {F}odor's theorem: a topological version},
      NOTE = {Special volume on ordered sets and their applications
              (L'Arbresle, 1982)},
   JOURNAL = {Discrete Math.},
  FJOURNAL = {Discrete Mathematics},
    VOLUME = {53},
      YEAR = {1985},
     PAGES = {3--19},
      ISSN = {0012-365X,1872-681X},
   MRCLASS = {03E05 (04A20 54A99)},
  MRNUMBER = {786473},
MRREVIEWER = {Judith\ Roitman},
       DOI = {10.1016/0012-365X(85)90125-6},
       URL = {https://doi.org/10.1016/0012-365X(85)90125-6},
}



@incollection {MR2223392,
    AUTHOR = {Juh\'{a}sz, I. and Szymanski, A.},
     TITLE = {The topological version of {F}odor's theorem},
 BOOKTITLE = {More sets, graphs and numbers},
    SERIES = {Bolyai Soc. Math. Stud.},
    VOLUME = {15},
     PAGES = {157--174},
 PUBLISHER = {Springer, Berlin},
      YEAR = {2006},
      ISBN = {3-540-32377-5; 963-9453-05-6},
   MRCLASS = {54A25 (03E05 54D20)},
  MRNUMBER = {2223392},
       DOI = {10.1007/978-3-540-32439-3\_8},
       URL = {https://doi.org/10.1007/978-3-540-32439-3_8},
}