https://aclanthology.org/P09-1076/
Genre distinctions for discourse in the Penn TreeBank - ACL Anthology
Bonnie Webber. Proceedings of the Joint Conference of the 47th Annual Meeting of the ACL and the 4th International Joint Conference on Natural Language...
in thepenn treebankgenredistinctionsdiscourse
https://aclanthology.org/W16-1703/
Converting SynTagRus Dependency Treebank into Penn Treebank Style - ACL Anthology
Alex Luu, Sophia A. Malamud, Nianwen Xue. Proceedings of the 10th Linguistic Annotation Workshop held in conjunction with ACL 2016 (LAW-X 2016). 2016.
convertingdependencytreebankpennstyle