Shyr, Huei-Jan; Yu, Shyr-Shen Some properties of left non-cancellative languages. (English) Zbl 0942.68066 J. Autom. Lang. Comb. 4, No. 4, 351-360 (1999). MSC: 68Q45 PDF BibTeX XML Cite \textit{H.-J. Shyr} and \textit{S.-S. Yu}, J. Autom. Lang. Comb. 4, No. 4, 351--360 (1999; Zbl 0942.68066)
Madonia, Maria; Salemi, Sergio; Sportelli, Tecla Covering submonoids and covering codes. (English) Zbl 0942.68065 J. Autom. Lang. Comb. 4, No. 4, 333-350 (1999). MSC: 68Q45 94B99 PDF BibTeX XML Cite \textit{M. Madonia} et al., J. Autom. Lang. Comb. 4, No. 4, 333--350 (1999; Zbl 0942.68065)
Kemp, Rainer On leftist simply generated trees. (English) Zbl 0942.68102 J. Autom. Lang. Comb. 4, No. 4, 313-331 (1999). MSC: 68R10 PDF BibTeX XML Cite \textit{R. Kemp}, J. Autom. Lang. Comb. 4, No. 4, 313--331 (1999; Zbl 0942.68102)
Jančar, Petr; Mráz, František; Plátek, Martin; Vogel, Jörg On monotonic automata with a restart operation. (English) Zbl 0942.68064 J. Autom. Lang. Comb. 4, No. 4, 287-311 (1999). MSC: 68Q45 68Q42 PDF BibTeX XML Cite \textit{P. Jančar} et al., J. Autom. Lang. Comb. 4, No. 4, 287--311 (1999; Zbl 0942.68064)