@InProceedings{Teich_et_al:2001,
      AUTHOR = {Teich, Elke and Hansen, Silvia and Fankhauser, Peter},
      TITLE = {Representing and querying multi-layer annotated corpora},
      YEAR = {2001},
      BOOKTITLE = {Proceedings of IRCS Workshop on Linguistic Databases 2001, December 11-13},
      EDITOR = {Bird, Steven and Buneman, Peter and Liberman, Mark},
      ADDRESS = {University of Pennsylvania, Philadelphia, USA},
      URL = {https://www.coli.uni-saarland.de/~hansen/teich-etal.pdf},
      ABSTRACT = {The goal of the present paper is to review the methods employed in multi-layer corpus representation and querying and to identify the more fundamental issues involved in the task. Asking questions such as: What are the linguistic requirements on multi-layer corpora? Do the data structures commonly employed mirror the needs of linguistic representation appropriately? Should different layers of annotation be kept separate, or should and can they be merged? How and at which granularity can we align/integrate multiple layers of annotation? If expressively more powerful data structures than trees/forests are required, then what kinds of mechanisms are needed to query such data structures?, we propose an XML-based approach to the representation and querying of multi-layer corpora.},
      ANNOTE = {COLIURL : Teich:2001:RQM.pdf}
}