@article {MR0963018,
    AUTHOR = {Petzsche, Hans-Joachim},
     TITLE = {On {E}. {B}orel's theorem},
   JOURNAL = {Math. Ann.},
  FJOURNAL = {Mathematische Annalen},
    VOLUME = {282},
      YEAR = {1988},
    NUMBER = {2},
     PAGES = {299--313},
      ISSN = {0025-5831,1432-1807},
   MRCLASS = {46F05 (26A24 46E10)},
  MRNUMBER = {963018},
MRREVIEWER = {B.\ A.\ Taylor},
       DOI = {10.1007/BF01456977},
       URL = {https://doi.org/10.1007/BF01456977},
}




@article {MR3139583,
    AUTHOR = {Besenyei, \'{A}d\'{a}m},
     TITLE = {Peano's unnoticed proof of {B}orel's theorem},
   JOURNAL = {Amer. Math. Monthly},
  FJOURNAL = {American Mathematical Monthly},
    VOLUME = {121},
      YEAR = {2014},
    NUMBER = {1},
     PAGES = {69--72},
      ISSN = {0002-9890,1930-0972},
   MRCLASS = {01A55 (40A05 41A58)},
  MRNUMBER = {3139583},
MRREVIEWER = {Jos\'{e}\ Miguel\ Pacheco Castelao},
       DOI = {10.4169/amer.math.monthly.121.01.069},
       URL = {https://doi.org/10.4169/amer.math.monthly.121.01.069},
}