BERTONI A., MASSAZZA P., RADICIONI R. (2003). Random generation of words in regular languages with fixed occurrences of symbols. WORDS'03 - 4th international conference on combinatorics on words. (pp. 332-343). ISBN 952-12-1211-X.
MASSAZZA P., RADICIONI R. (2004). On computing the coefficients of rational formal series. Formal Power Series and Algebraic Combinatorics, 16th International Conference FPSAC'04. (pp. 211-226).
MASSAZZA P. (2005). The Inclusion Problem for Unambiguous Trace Languages. Developments in Language Theory (DLT 2005). (vol. 3572, pp. 350-361). ISBN/ISSN: 0302-9743. LNCS 3572, Springer 2005.
MASSAZZA P. (2005). On the equation XL=LX. Words 2005 - 5th international conference on combinatorics on words. (pp. 315-322). ISBN:2-89276-376-2.
MASSAZZA P., RADICIONI R. (2005). On computing the coefficients of bivariate holonomic formal series. THEORETICAL COMPUTER SCIENCE. vol. 346, pp. 418-438 ISSN: 0304-3975.
MASSAZZA P., SALMELA P. (2006). On the simplest centralizer of a language. RAIRO. INFORMATIQUE THEORIQUE ET APPLICATIONS,vol. 40, 2; p. 295-301, ISSN: 0988-3754.
MASSAZZA P., RADICIONI R. (2006). A symbolic approach to computing with holonomic functions. Proc. GASCOM 2006. 11-15 settembre 2006.
MASSAZZA P., RADICIONI R (2007). A symbolic approach to computing with holonomic functions. PURE MATHEMATICS AND APPLICATIONS, vol. 17, 1-2; p. 147-164, ISSN: 1218-4586
MASSAZZA P. (2008). On generating sand piles. In: Proceedings of GASCom 2008. Bibbiena (Arezzo), 16-19 giugno 2008, Dipartimento di Scienze Matematiche e Informatiche Università di Siena, p. 171-181
MASSAZZA P. (2009). A Cat Algorithm for Sand Piles. PURE MATHEMATICS AND APPLICATIONS, vol. 19(2-3); p. 147-158, ISSN: 1218-4586
MASSAZZA P. (2010). On the exhaustive generation of symmetric sand piles. In: GASCom 2010. Montreal, 2-4 settembre 2010
MASSAZZA P.,RADICIONI R. (2010). A CAT Algorithm for the Exhaustive Generation of Ice Piles, RAIRO. INFORMATIQUE THEORIQUE ET APPLICATIONS, vol. 44 n.4, pp. 525-543
MANTACI R., MASSAZZA P. (2011). From Linear Partitions to Parallelogram Polyominoes, Proceedings of DLT 2011, LNCS 6975