@article { Gutman20031114,
  author = "Gutman A.E. and Sotnikov A.I.",
  title = "On order complete sigma-algebras",
  journal = "Sci. Proc. TyvSU. Kyzyl: TyvSU",
  year = "2003",
  volume = "1",
  pages = "83--86",
  language = "russian",
  annote = "A criterion is obtained for existence of a $\sigma$-algebra $\Sigma$ of subsets of a given set $X$ such that $\Sigma$ is order complete and atomic, but is not discrete, i.e., $\Sigma$ does not coincide with the totality of the unions of various subsets of some partition of $X$."
}