To cite pegs in publications use:

  Xavier, A. and Habier, D. (2022). A new approach fits multivariate
  genomic prediction models efficiently. GSE. 54(1), 45.

A BibTeX entry for LaTeX users is

  @Article{,
    title = {A new approach fits multivariate genomic prediction models efficiently},
    author = {Alencar Xavier and David Habier},
    journal = {Genetics Selection Evolution},
    volume = {54},
    number = {1},
    year = {2022},
    pages = {45},
    doi = {10.1186/s12711-022-00730-w},
  }