Böttcher, Stefan, Rita Hartel, and Christian Messinger. “Queryable SEPA Message Compression by XML Schema Subtraction.” In ICEIS 2010 - Proceedings of the 12th International Conference on Enterprise Information Systems, 23–29, 2010.

Böttcher, Stefan, Rita Hartel, and Christoph Krislin. “CluX - Clustering XML Sub-Trees.” In ICEIS 2010 - Proceedings of the 12th International Conference on Enterprise Information Systems, 142–50, 2010.

Böttcher, Stefan, Rita Hartel, and Christian Messinger. “Using XML Schema Subtraction to Compress Electronic Payment Messages.”https://doi.org/10.1007/978-3-642-19802-1_31__In Enterprise Information Systems - 12th International Conference, ICEIS 2010, Revised Selected Papers, 451–63. Springer, 2010.https://doi.org/10.1007/978-3-642-19802-1_31 .

Böttcher, Stefan, Rita Hartel, and Christian Messinger. “Searchable Compression of Office Documents by XML Schema Subtraction.”https://doi.org/10.1007/978-3-642-15684-7_9__In Database and XML Technologies - 7th International XML Database Symposium, XSym 2010, 103–12. Springer, 2010.https://doi.org/10.1007/978-3-642-15684-7_9 .

Böttcher, Stefan, and Rita Hartel. “Information Disclosure by Answers to XPath Queries.”https://doi.org/10.3233/jcs-2009-0318__Journal of Computer Security 17, no. 1 (2009): 69–99.https://doi.org/10.3233/jcs-2009-0318 .

Böttcher, Stefan, and Rita Hartel. “CSC: Supporting Queries on Compressed Cached XML.” In Database Technologies 2009, Twentieth Australasian Database Conference, ADC 2009, 153–60. Australian Computer Society, Inc., 2009.

Böttcher, Stefan, Rita Hartel, and Christian Messinger. “XML Stream Data Reduction by Shared KST Signatures.”https://doi.org/10.1109/hicss.2009.513__In 2009 42nd Hawaii International Conference on System Sciences. IEEE, 2009.https://doi.org/10.1109/hicss.2009.513 .

Hartel, Rita. Navigierbare Kompression von XML-Datenströmen. University of Paderborn, Germany, 2008.

Böttcher, Stefan, Rita Hartel, and Matthias Kirschner. “Detecting Suspicious Relational Database Queries.”https://doi.org/10.1109/ares.2008.125__In Third International Conference on Availability, Reliability and Security, 771–78. IEEE, 2008.https://doi.org/10.1109/ares.2008.125 .

Böttcher, Stefan, Rita Hartel, and Christian Heinzemann. “BSBC: Towards a Succinct Data Format for XML Streams.” In WEBIST 2008, Proceedings of the Fourth International Conference on Web Information Systems and Technologies, 13–21. INSTICC, 2008.

Böttcher, Stefan, Rita Hartel, and Christian Heinzemann. “Compressing XML Data Streams with DAG+BSBC.”https://doi.org/10.1007/978-3-642-01344-7_6__In Web Information Systems and Technologies, 4th International Conference, WEBIST 2008, Revised Selected Papers, 65–79. Springer, 2008.https://doi.org/10.1007/978-3-642-01344-7_6 .

Böttcher, Stefan, and Rita Steinmetz. “Evaluating XPath Queries on XML Data Streams.”https://doi.org/10.1007/978-3-540-73390-4_10__In Data Management. Data, Data Everywhere, 24th British National Conference on Databases, BNCOD 24, 101–13. Springer, 2007.https://doi.org/10.1007/978-3-540-73390-4_10 .

Böttcher, Stefan, and Rita Steinmetz. “Data Management for Mobile Ajax Web 2.0 Applications.”https://doi.org/10.1007/978-3-540-74469-6_42__In Database and Expert Systems Applications, 18th International Conference, DEXA 2007, 424–33. Springer, 2007.https://doi.org/10.1007/978-3-540-74469-6_42 .

Böttcher, Stefan, Rita Steinmetz, and Niklas Klein. “XML Index Compression by DTD Subtraction.” In ICEIS 2007 - Proceedings of the Ninth International Conference on Enterprise Information Systems, 86–94, 2007.

Groppe, Sven, Stefan Böttcher, Georg Birkenheuer, and André Höing. “Reformulating XPath Queries and XSLT Queries on XSLT Views.”https://doi.org/10.1016/j.datak.2005.04.002__Data &; Knowledge Engineering 57, no. 1 (2006): 64–110.https://doi.org/10.1016/j.datak.2005.04.002 .

Böttcher, Stefan, and Rita Steinmetz. “DTD-Driven Structure Preserving XML Compression.”https://doi.org/10.1007/11788911_27__In Flexible and Efficient Information Handling, 23rd British National Conference on Databases, BNCOD 23, 266–69. Berlin, Heidelberg, 2006.https://doi.org/10.1007/11788911_27 .

Böttcher, Stefan, and Rita Steinmetz. “Finding the Leak: A Privacy Audit System for Sensitive XML Databases.”https://doi.org/10.1109/icdew.2006.61__In 22nd International Conference on Data Engineering Workshops (ICDEW’06). IEEE, 2006.https://doi.org/10.1109/icdew.2006.61 .

Böttcher, Stefan, and Rita Steinmetz. “Information Disclosure by XPath Queries.”https://doi.org/10.1007/11844662_12__In Secure Data Management, Third VLDB Workshop, SDM 2006, 160–74. Springer, 2006.https://doi.org/10.1007/11844662_12 .

Böttcher, Stefan, and Rita Steinmetz. “Adaptive XML Access Control Based on Query Nesting, Modification and Simplification.” In Datenbanksysteme in Business, Technologie Und Web, 11. Fachtagung Des GI-Fachbereichs “Datenbanken Und Informationssysteme” (DBIS), 295–304, 2005.

Böttcher, Stefan, and Rita Steinmetz. “Embedding XML Schema Constraints in Search-Based Intersection Tests for XPath Query Optimization.”https://doi.org/10.1109/dexa.2005.83__In 16th International Workshop on Database and Expert Systems Applications (DEXA’05), 842–46. IEEE, 2005.https://doi.org/10.1109/dexa.2005.83 .