Dunst, A., Hartel, R., Hohenstein, S., &; Laubrock, J. (2015). Digitale Analyse Graphischer Literatur. In DHd-Tagung 2015 - Von Daten zu Erkenntnissen.

Böttcher, S., Hartel, R., &; Thiele, S. (2014). Difference Computation for Grammar-Compressed XML Data. In Proceedings of the Second Australasian Web Conference (pp. 3–12). Australian Computer Society, Inc.

Böttcher, S., Brandenburg, M., &; Hartel, R. (2014). Keyword Search on DAG-Compressed XML Data. In Proceedings of the Second Australasian Web Conference (pp. 13–20). Australian Computer Society, Inc.

Böttcher, S., Hartel, R., &; Rabe, J. (2014). Efficient XML Keyword Search Based on DAG-Compression. In Database and Expert Systems Applications - 25th International Conference, DEXA 2014 (pp. 122–137). Cham: Springer.https://doi.org/10.1007/978-3-319-10073-9_11 

Böttcher, S., Feldotto, M., &; Hartel, R. (2013). Schema-based Parallel Compression and Decompression of XML Data. In WEBIST 2013 - Proceedings of the 9th International Conference on Web Information Systems and Technologies, Aachen, Germany, 8-10 May, 2013 (pp. 77–86).https://doi.org/10.5220/0004366300770086 

Böttcher, S., Hartel, R., &; Jacobs, T. (2013). Fast Multi-update Operations on Compressed XML Data. In Big Data - 29th British National Conference on Databases, BNCOD 2013, (pp. 149–164). Berlin, Heidelberg: Springer.https://doi.org/10.1007/978-3-642-39467-6_15 

Böttcher, S., Brandenburg, M., &; Hartel, R. (2013). DAG - Index - A Compressed Index for XML Keyword Search. In WEBIST 2013 - Proceedings of the 9th International Conference on Web Information Systems and Technologies (pp. 137–140). SciTePress.

Böttcher, S., Bültmann, A., Hartel, R., &; Schlüßler, J. (2013). Implementing Efficient Updates in Compressed Big Text Databases. In International Conference on Database and Expert Systems Applications (pp. 189–202). Springer.

Böttcher, S., Bokermann, D., &; Hartel, R. (2012). Generalizing and Improving SQL/XML Query Evaluation. In 8th International Conference on Signal Image Technology and Internet Based Systems (SITIS’12). IEEE.https://doi.org/10.1109/sitis.2012.72 

Böttcher, S., Hartel, R., &; Weber, S. (2012). Efficient String-Based XML Stream Prefiltering. In Proceedings of the Twenty-Third Australasian Database Conference (pp. 145–152). Australian Computer Society, Inc.

Böttcher, S., Bültmann, A., Hartel, R., &; Schlüßler, J. (2012). Fast Insertion and Deletion in Compressed Texts. In 2012 Data Compression Conference (p. 393). IEEE.https://doi.org/10.1109/dcc.2012.50 

Böttcher, S., Bokermann, D., &; Hartel, R. (2011). Computing Compressed XML Data from Relational Databases. In Advances in Databases - 28th British National Conference on Databases, BNCOD 28, Revised Selected Papers (Vol. 7051, pp. 209–220). Springer Berlin/Heidelberg.

Feldotto, M. (2011). Parallele Kompression von XML mit XML-Schema-Subtraktion. Universität Paderborn.

Benter, M., Böttcher, S., &; Hartel, R. (2011). Mixing Bottom-Up and Top-Down XPath Query Evaluation. In East European Conference on Advances in Databases and Information Systems (pp. 27–41). Springer.https://doi.org/10.1007/978-3-642-23737-9_3 

Bätz, A., Böttcher, S., &; Hartel, R. (2011). Updates on Grammar-Compressed XML Data. In Advances in Databases - 28th British National Conference on Databases, BNCOD 28, Revised Selected Papers (pp. 154–166). Springer.https://doi.org/10.1007/978-3-642-24577-0_17 

Böttcher, S., Hartel, R., &; Stey, S. (2011). TraCX: Transformation of Compressed XML. In Advances in Databases - 28th British National Conference on Databases, BNCOD 28, Revised Selected Papers (pp. 182–193). Springer.https://doi.org/10.1007/978-3-642-24577-0_19 

Böttcher, S., Bültmann, A., &; Hartel, R. (2011). Search and Modification in Compressed Texts. In 2011 Data Compression Conference (pp. 403–412). IEEE.https://doi.org/10.1109/dcc.2011.47 

Böttcher, S., Fernhomberg, L., &; Hartel, R. (2011). Enhancing XML-cache Efficiency by XML Compression. In WEBIST 2011, Proceedings of the 7th International Conference on Web Information Systems and Technologies (pp. 80–87). SciTePress.

Böttcher, S., Fernhomberg, L., &; Hartel, R. (2011). Reducing Data Transfer by Combining XML-Compression and XML-Caching. In Web Information Systems and Technologies - 7th International Conference, WEBIST 2011, Revised Selected Papers (pp. 116–130). Springer.https://doi.org/10.1007/978-3-642-28082-5_9 

Böttcher, S., Hartel, R., &; Hawicks, H. (2011). Namenlemmatisierung in der Web-Datenbank mittelalterlicher und frühneuzeitlicher Universitätsmatrikel. In XXIV ICOS Internationales Kongress für Namensforschung.