Aggio R, Villas-Boas SG, Ruggiero K (2011). “Metab: an R package for high-throughput analysis of metabolomics data generated by GC-MS.” Bioinformatics Journal, 2316-2318. doi:10.1093/bioinformatics/btr379, http://bioinformatics.oxfordjournals.org/content/27/16/2316.short.