To cite blavaan in publications use:

Merkle EC, Rosseel Y (2018). “blavaan: Bayesian Structural Equation Models via Parameter Expansion.” Journal of Statistical Software, 85(4), 1–30. doi: 10.18637/jss.v085.i04.

Corresponding BibTeX entry:

  @Article{,
    title = {{blavaan}: Bayesian Structural Equation Models via
      Parameter Expansion},
    author = {Edgar C. Merkle and Yves Rosseel},
    journal = {Journal of Statistical Software},
    year = {2018},
    volume = {85},
    number = {4},
    pages = {1--30},
    doi = {10.18637/jss.v085.i04},
  }