@InProceedings{peterfreund_et_al:LIPIcs.ICDT.2019.13,
author = {Peterfreund, Liat and Cate, Balder ten and Fagin, Ronald and Kimelfeld, Benny},
title = {{Recursive Programs for Document Spanners}},
booktitle = {22nd International Conference on Database Theory (ICDT 2019)},
pages = {13:1--13:18},
series = {Leibniz International Proceedings in Informatics (LIPIcs)},
ISBN = {978-3-95977-101-6},
ISSN = {1868-8969},
year = {2019},
volume = {127},
editor = {Barcelo, Pablo and Calautti, Marco},
publisher = {Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
address = {Dagstuhl, Germany},
URL = {https://drops.dagstuhl.de/entities/document/10.4230/LIPIcs.ICDT.2019.13},
URN = {urn:nbn:de:0030-drops-103155},
doi = {10.4230/LIPIcs.ICDT.2019.13},
annote = {Keywords: Information Extraction, Document Spanners, Polynomial Time, Recursion, Regular Expressions, Datalog}
}