2015 Panny, Wolfgang, Prodinger, Helmuth. 2015. A combinatorial study of two-periodic random walks. Stochastic Models http://www.tandfonline.com/doi/full/10.1080/15326349.2015.1105140. (Details)
2008 Hahsler, Michael, Hornik, Kurt, Buchta, Christian. 2008. Getting things in order: An introduction to the R package seriation. Journal of Statistical Software 25 (3): 1-34. http://www.jstatsoft.org/v25/i03. (Details)
2007 Hahsler, Michael, Hornik, Kurt. 2007. TSP - Infrastructure for the traveling salesperson problem. Journal of Statistical Software 23 (2): 1-21. http://www.jstatsoft.org/v23/i02. (Details)
2005 Liu, Wei, Weichselbraun, Albert, Scharl, Arno, Chang, Elisabeth. 2005. Semi-Automatic Ontology Extension Using Spreading Activation. Journal of Universal Knowledge Management O (1): 50-58. http://www.jukm.org/jukm_0_1/semi_automatic_ontology_extension. (Details)