Last Words: Amazon Mechanical Turk: Gold Mine or Coal Mine? Karën Fort author Gilles Adda author K Bretonnel Cohen author 2011-06 text journal article Computational Linguistics continuing MIT Press Cambridge, MA periodical academic journal fort-etal-2011-last 10.1162/COLI_a_00057 https://aclanthology.org/J11-2010/ 2011-06 37 2 413 420