To cite echo.find in publications use:

Hannah De los Santos, Emily J Collins, Catherine Mann, April W Sagan, Meaghan S Jankowski, Kristin P Bennett, Jennifer M Hurley, ECHO: an application for detection and analysis of oscillators identifies metabolic regulation on genome-wide circadian output, Bioinformatics, Volume 36, Issue 3, 1 February 2020, Pages 773–781, https://doi.org/10.1093/bioinformatics/btz617

Corresponding BibTeX entry:

  @Article{,
    title = {ECHO: an application for detection and analysis of
      oscillators identifies metabolic regulation on genome-wide
      circadian output},
    author = {Hannah {De los Santos} and Emily J Collins and Catherine
      Mann and April W Sagan and Meaghan S Jankowski and Kristin P
      Bennett and Jennifer M Hurley},
    journal = {Bioinformatics},
    year = {2020},
    note = {R package version 4.0},
    doi = {10.1093/bioinformatics/btz617},
    volume = {36},
    number = {3},
    pages = {773-781},
    year = {2020},
    month = {08},
    url = {https://doi.org/10.1093/bioinformatics/btz617},
    issn = {1367-4803},
  }