To cite PTT or its implemented methods, use one or more of:

  Ma L (2017). “Adaptive Shrinkage in Pólya Tree Type Models.”
  _Bayesian Analysis_, *12*(3), 779-805. doi:10.1214/16-BA1021
  <https://doi.org/10.1214/16-BA1021>.

A BibTeX entry for LaTeX users is

  @Article{,
    title = {Adaptive Shrinkage in Pólya Tree Type Models},
    author = {Li Ma},
    journal = {Bayesian Analysis},
    year = {2017},
    volume = {12},
    number = {3},
    pages = {779--805},
    doi = {10.1214/16-BA1021},
  }

  Ma L (2017). “Recursive Partitioning and Multi-Scale Modeling on
  Conditional Densities.” _Electronic Journal of Statistics_, *11*(1),
  1297-1325. doi:10.1214/17-EJS1254
  <https://doi.org/10.1214/17-EJS1254>.

A BibTeX entry for LaTeX users is

  @Article{,
    title = {Recursive Partitioning and Multi-Scale Modeling on Conditional Densities},
    author = {Li Ma},
    journal = {Electronic Journal of Statistics},
    year = {2017},
    volume = {11},
    number = {1},
    pages = {1297--1325},
    doi = {10.1214/17-EJS1254},
  }

  Wong W, Ma L (2010). “Optional Pólya Tree and Bayesian Inference.”
  _The Annals of Statistics_, *38*(3), 1433-1459. doi:10.1214/09-AOS755
  <https://doi.org/10.1214/09-AOS755>.

A BibTeX entry for LaTeX users is

  @Article{,
    title = {Optional Pólya Tree and Bayesian Inference},
    author = {Wing H. Wong and Li Ma},
    journal = {The Annals of Statistics},
    year = {2010},
    volume = {38},
    number = {3},
    pages = {1433--1459},
    doi = {10.1214/09-AOS755},
  }