SALTO - A Versatile Multi-Level Annotation Tool Aljoscha Burchardt author Katrin Erk author Anette Frank author Andrea Kowalski author Sebastian Pado author 2006-05 text Proceedings of the Fifth International Conference on Language Resources and Evaluation (LREC’06) Nicoletta Calzolari editor Khalid Choukri editor Aldo Gangemi editor Bente Maegaard editor Joseph Mariani editor Jan Odijk editor Daniel Tapias editor European Language Resources Association (ELRA) Genoa, Italy conference publication burchardt-etal-2006-salto https://aclanthology.org/L06-1197/ 2006-05