To cite CellTrails in publications use:

  Daniel C. Ellwanger, Mirko Scheibinger, Rachel A. Dumont, Peter G.
  Barr-Gillespie, and Stefan Heller (2018). Transcriptional dynamics of
  hair-bundle morphogenesis revealed with CellTrails. Cell Reports 2018
  Jun 5;23(10):2901-2914 doi: 10.1016/j.celrep.2018.05.002

A BibTeX entry for LaTeX users is

  @Article{,
    title = {Transcriptional dynamics of hair-bundle morphogenesis revealed with CellTrails},
    author = {Daniel C. Ellwanger and Mirko Scheibinger and Rachel A. Dumont and Peter G. Barr-Gillespie and Stefan Heller},
    journal = {Cell Reports},
    year = {2018},
    volume = {23(10)},
    pages = {2901–14},
    doi = {10.1016/j.celrep.2018.05.002},
  }