Güntsch, A.; Hoffmann, N.; Kelbert, P.; Berendsohn, W. G. EFFECTIVELY SEARCHING SPECIMEN AND OBSERVATION DATA WITH TOQE, THE THESAURUS OPTIMIZED QUERY EXPANDER. Biodiv. Inf. 2009, 6 (1), 53-58. https://doi.org/10.17161/bi.v6i1.1631.