To cite 'hbim' package use the following reference:

Saul A, Fay MP (2007) Human Immunity and the Design of Multi-Component, Single Target Vaccines. PLoS ONE 2(9):e850.doi:10.1371/jounal.pone.0000850 (see http://www.plosone.org/)

Corresponding BibTeX entry:

  @Article{,
    title = {Human Immunity and the Design of Multi-Component, Single
      Target Vaccines},
    author = {Allan Saul and Michael P. Fay},
    journal = {PLoS One},
    year = {2007},
    volume = {2},
    number = {9},
    pages = {e850},
  }