P. Bonizzoni, C. Ferretti, G. Mauri, and R. Zizza, Separating some splicing models, Inf. Process. Lett, vol.79, issue.6, pp.255-259, 2001.

C. Câmpeanu, I. I. Culik, K. Salomaa, K. Yu, and S. , State complexity of basic operations on finite languages, Automata Implementation (WIA'99), vol.2214, pp.60-70, 2001.

R. Ceterchi, An algebraic characterization of semi-simple splicing, Fundam. Informaticae, vol.72, pp.19-25, 2006.

I. I. Culik, K. Harju, and T. , Splicing semigroups of dominoes and DNA, Discret. Appl. Math, vol.31, issue.3, pp.261-277, 1991.

S. K. Enaganti, L. Kari, T. Ng, and Z. Wang, Word blending in formal languages: The Brangelina effect, Unconventional Computation and Natural Computation (UCNC 2018), vol.10867, pp.72-85, 2018.

Y. Gao, N. Moreira, R. Reis, and S. Yu, A survey on operational state complexity, J. Autom. Lang. Comb, vol.21, issue.4, pp.251-310, 2016.

R. Gatterdam, Splicing systems and regularity, Int. J. Comput. Math, vol.31, issue.1-2, pp.63-67, 1989.

J. S. Golan, Semirings and their Applications, 1999.

E. Goode and D. Pixton, Semi-simple splicing systems, In: Where Math. Comput. Sci. Linguist. Biol. Meet, pp.343-352, 2001.

T. Head, Formal language theory and DNA: An analysis of the generative capacity of specific recombinant behaviors, Bull. Math. Biol, vol.49, issue.6, pp.737-759, 1987.

T. Head and D. Pixton, Splicing and regularity, Studies in Computational Intelligence, vol.25, pp.119-147, 2006.

M. Holzer and M. Kutrib, Descriptional and computational complexity of finite automata -A survey, Inf. Comput, vol.209, pp.456-470, 2011.

R. Loos, A. Malcher, and D. Wotschke, Descriptional complexity of splicing systems, Int. J. Found. Comput. Sci, vol.19, issue.04, pp.813-826, 2008.

A. Mateescu, G. P?un, G. Rozenberg, and A. Salomaa, Simple splicing systems, Discret. Appl. Math, vol.84, issue.1-3, pp.145-163, 1998.

D. Pixton, Regularity of splicing languages, Discret. Appl. Math, vol.69, issue.1-2, pp.101-124, 1996.

G. P?un, On the splicing operation, Discret. Appl. Math, vol.70, issue.1, pp.57-79, 1996.