APA (7th ed.) Citation
(2015). Complexity of Problems of Commutative Grammars. Logical Methods in Computer Science.
Chicago Style (17th ed.) Citation
"Complexity of Problems of Commutative Grammars." Logical Methods in Computer Science 2015.
MLA (9th ed.) Citation
"Complexity of Problems of Commutative Grammars." Logical Methods in Computer Science, 2015.
Warning: These citations may not always be 100% accurate.