To cite bliss in publications use:

  Grollemund P-M., Abraham C., Baragatti M., Pudlo P. (2019). Bayesian
  Functional Linear Regression with Sparse Step Functions. Bayesian
  Anal. 14 (2019), no. 1, 111--135. doi:10.1214/18-BA1095.
  https://projecteuclid.org/euclid.ba/1524103229

A BibTeX entry for LaTeX users is

  @Article{,
    title = {Bayesian Functional Linear Regression with Sparse Step Functions.},
    author = {P-M. Grollemund and C. Abraham and M. Baragatti and P. Pudlo},
    journal = {Bayesian Analysis},
    year = {2019},
    volume = {14},
    number = {1},
    pages = {111-135},
    doi = {10.1214/18-BA1095},
    howpublished = {https://projecteuclid.org/euclid.ba/1524103229},
  }