Citation of this work (when using massXpert)
Rusconi, F. (2009) massXpert 2: a cross-platform software environment for polymer chemistry modelling and simulation/analysis of mass spectrometric data, Bioinformatics, 2009, 25:2741-2742, doi:10.1093/bioinformatics/btp504.
It might be of interest to also cite this website: http://www.msxpertsuite.org.