To cite gambin in a publication:

Matthews, T.J., Borregaard, M.K., Ugland, K.I., Borges, P.A.V, Rigal, F., Cardoso, P. and Whittaker, R.J. (2014) The gambin model provides a superior fit to species abundance distributions with a single free parameter: evidence, implementation and interpretation. Ecography 37: 1002-1011.

Corresponding BibTeX entry:

  @Article{,
    title = {The gambin model provides a superior fit to species
      abundance distributions with a single free parameter: evidence,
      implementation and interpretation},
    author = {T.J. Matthews and M.K. Borregaard and K.I. Ugland and
      P.A.V. Borges and F. Rigal and P. Cardoso and R.J. Whittaker},
    journal = {Ecography},
    volume = {37},
    pages = {1002-1011},
    year = {2014},
  }