Wreath products of generalized automata
Penjam, Jaan
;
Vene, Varmo
2nd APPSEM II Workshop : APPSEM 2004 : Tallinn, Estonia, 14-16 April 2004 : proceedings
2004
/
p. 217-218
https://cdc.ioc.ee/appsem04/webproc/short/penjam-vene.pdf