Parikh matrices and amiable words. - Adrian Atanasiu; Radu-Florian Atanasiu; Ion Petre (Theor. Comput. Sci., 2008)

Parikh Matrix Mapping and Languages. - Radu-Florian Atanasiu (Int. J. Found. Comput. Sci., 2010)

Erratum: "Parikh Matrix Mapping and Languages". - Radu-Florian Atanasiu (Int. J. Found. Comput. Sci., 2011)

Enriching Parikh matrix mappings. - Adrian Atanasiu; Radu-Florian Atanasiu (Int. J. Comput. Math., 2013)