1. T. Tzouramanis, M. Vassilakopoulos, and Y. Manolopoulos. Overlapping Linear Quadtrees and Spatio-Temporal Query Processing. The Computer Journal, 43(4):325--343 , 2000. (bibtex entry)

2. M. Vassilakopoulos and Y. Manolopoulos. A random model for analysing region quadtrees. Pattern Recognition Letters, 16:1137--1145 , 1995. (bibtex entry)

3. M. Vassilakopoulos and Y. Manolopoulos. Dynamic Inverted Quadtrees - a Structure for Pictorial Databases. Information Systems, Special Issue on Multimedia Information Systems, 20(6):483--500 , 1995. (bibtex entry)

4. M. Vassilakopoulos, Y. Manolopoulos, and B. Kroell. Efficiency Analysis of Overlapped Quadtrees. Nordic Journal on Computing, 2(1):70--84 , 1995. (bibtex entry)

5. M. Vassilakopoulos, Y. Manolopoulos, and K. Economou. Overlapping Quadtrees for the Representation of Similar Images. Image and Vision Computing, 11(5):257--262 , june 1993. (bibtex entry)

1. T. Tzouramanis, M. Vassilakopoulos, and Y. Manolopoulos. Time-Split Linear Quadtrees for Indexing Image Databases. In Proceedings 8th IEEE International Conference on Image Processing (ICIP'2001), Thessaloniki (Greece), pages 733--736, October 7-10 2001. (bibtex entry)

2. T. Tzouramanis, M. Vassilakopoulos, and Y. Manolopoulos. Multiversion Linear Quadtree for Spatio-Temporal Data. In East-European Conference on Advances in Databases and Information Systems Held Jointly with International Conference on Database Systems for Advanced Applications, (ADBIS-DASFAA 2000), Prague (Czech Republic), pages 279--292, September 5-8 2000. Lecture Notes in Computer Science, Vol. 1884, Springer . (bibtex entry)

3. A. Corral, M. Vassilakopoulos, and Y. Manolopoulos. Algorithms for Joining R-trees and Linear Region Quadtrees. In Proceedings 6th International Symposium on Spatial Databases (SSD'99), Hong-Kong, July 1999. (http://delab.csd.auth.gr/publications.html ) (bibtex entry)

4. T. Tzouramanis, M. Vassilakopoulos, and Y. Manolopoulos. Processing of Spatio-temporal Queries in Image Databases. In East-European Conference on Advances in Databases and Information Systems (ADBIS'99), Maribor (Slovenia), pages 85--97, September 1999. Lecture Notes in Computer Science, Vol. 1691, Springer-Verlag LNCS . (bibtex entry)

5. M. Vassilakopoulos and Y. Manolopoulos. External Balanced Regular (x-BR) trees: New Structures for Very Large Spatial Databases. In Proc. of the 7th National Computer Conf. Also in, Advances in Informatics, by Fotiadis D.I. and Nikolopoulos S.D. (eds), World Scientific, pages 361--368, 1999. (bibtex entry)

6. T. Tzouramanis, M. Vassilakopoulos, and Y. Manolopoulos. Overlapping Linear Quadtrees: a Spatio-temporal Access Method. In 6th ACM Workshop on Advances in Geographical Information Systems (ACM-GIS 98), Washington D.C., Nov. 1998 . (bibtex entry)

7. M. Vassilakopoulos and Y. Manolopoulos. Analytical Results on the Quadtree Storage-Requirements. In Springer-Verlag, editor, Proceedings 5th International Conference on Computer Analysis of Images and Patterns (CAIP 93), IAPR, volume Lecture Notes in Computer Science 719, Budapest, pages 41--48 , Sept. 1993. (bibtex entry)

1. T. Tzouramanis, M. Vassilakopoulos, and Y. Manolopoulos. Multiversion Linear Quadtree for Spatio-Temporal Data. Technical report, Dept. of Informatics, Aristotle University, Thessaloniki, Greece, mars 2000. (http://skyblue.csd.auth.gr/~theo/TechnicalReports/ ) (bibtex entry)

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