Salud María Jiménez-Zafra Roser Morante María Teresa Martín-Valdivia Luis Alfonso Ureña López Corpora Annotated with Negation: An Overview. 1-52 2020 46 Comput. Linguistics 1 https://doi.org/10.1162/coli_a_00371 https://www.wikidata.org/entity/Q126418470 db/journals/coling/coling46.html#ZafraMML20