Alexey Sorokin. Normal Forms for Multiple Context-Free Languages and Displacement Lambek Grammars. In Sergei N. Artëmov, Anil Nerode, editors, Logical Foundations of Computer Science, International Symposium, LFCS 2013, San Diego, CA, USA, January 6-8, 2013. Proceedings. Volume 7734 of Lecture Notes in Computer Science, pages 319-334, Springer, 2013. [doi]
Abstract is missing.