To cite the Lmoments package use:

J. Karvanen (2006), Estimation of quantile mixtures via L-moments and trimmed L-moments, Computational Statistics & Data Analysis, Volume 51, Issue 2, pages 947-959.
Juha Karvanen (2009). Lmoments: L-moments and quantile mixtures. R package version 1.1-3

Corresponding BibTeX entries:

  @article{,
    title = {Estimation of quantile mixtures via L-moments and trimmed
      L-moments, Computational Statistics & Data Analysis},
    author = {Juha Karvanen},
    year = {2006},
    volume = {51},
    number = {2},
    pages = {947-959},
  }
  @manual{,
    title = {Lmoments: L-moments and quantile mixtures},
    author = {Juha Karvanen},
    year = {2009},
    note = {R package version 1.1-3},
  }