@article(CulikII1977129,
 author       = {{Culik II}, Karel and Hermann A. Maurer},
 year         = {1977},
 title        = {{Tree controlled grammars}},
 journal      = {Computing},
 volume       = {19},
 number       = {2},
 pages        = {129--139},
 doi          = {10.1007/BF02252350},
)
@inproceedings(Dasssow2008,
 author       = {J{\"{u}}rgen Dassow and Bianca Truthe},
 year         = {2008},
 title        = {Subregularly Tree Controlled Grammars and Languages},
 editor       = {Csuhaj{-}Varj{\'{u}}, Erzs{\'{e}}bet and Zolt{\'{a}}n {\'{E}}sik},
 booktitle    = {Automata and Formal Languages, 12th International Conference, {AFL} 2008, Balatonf{\"{u}}red, Hungary, May 27-30, 2008, Proceedings},
 pages        = {158--169},
)
@article(geffert,
 author       = {Viliam Geffert},
 year         = {1991},
 title        = {Normal forms for phrase-structure grammars},
 journal      = {RAIRO - Theoretical Informatics and Applications - Informatique Th\'eorique et Applications},
 volume       = {25},
 number       = {5},
 pages        = {473--496},
 doi          = {10.1051/ita/1991250504731},
)
@book(introduction,
 author       = {John E. Hopcroft and Rajeev Motwani and Jeffrey D. Ullman},
 year         = {2007},
 title        = {Introduction to Automata Theory, Languages, and Computation},
 edition      = {3rd},
 publisher    = {Pearson},
)
@article(MK20,
 author       = {K\v{r}ivka, Zbyn\v{e}k and Alexander Meduna},
 year         = {2021},
 title        = {Scattered Context Grammars with One Non-Context-Free Production are Computationally Complete},
 journal      = {Fundamenta Informaticae},
 volume       = {179},
 number       = {4},
 pages        = {361--384},
 doi          = {10.3233/FI-2021-2028},
)
@book(Med00b,
 author       = {Alexander Meduna},
 year         = {2000},
 title        = {Automata and Languages: Theory and Applications},
 publisher    = {Springer},
 address      = {London},
 doi          = {10.1007/978-1-4471-0501-5},
)
@article(Tua11,
 author       = {Sherzod Tuarev and J\"{u}rgen Dassow and Mohd H. Selamat},
 year         = {2011},
 title        = {Nonterminal complexity of tree controlled grammars},
 journal      = {Theoretical Computer Science},
 volume       = {412},
 pages        = {5789--5795},
 doi          = {10.1016/j.tcs.2011.06.033},
)
@article(Tur12,
 author       = {Sherzod Turaev and J\"{u}rgen Dassow and Florin Manea and Mohd H. Selamat},
 year         = {2012},
 title        = {Language classes generated by tree controlled grammars with bounded nonterminal complexity},
 journal      = {Theoretical Computer Science},
 volume       = {449},
 pages        = {134--144},
 doi          = {10.1016/j.tcs.2012.04.013},
)