Wang Y, Backman TWH, Horan K, Girke T (2013). “fmcsR: mismatch tolerant maximum common substructure searching in R.” Bioinformatics, 29(21), 2792–2794. ISSN 1367-4811, doi:10.1093/bioinformatics/btt475, http://dx.doi.org/10.1093/bioinformatics/btt475.