Sources/SRC0D8MQT0R4X6W SRC0D8MQT0R4X6W · source · click to copy Estimating the number of unseen species: How many words did Shakespeare know? Efron and Thisted · 1976 · Biometrika articlePaywalled Read at doi.org The publisher charges for this one. The link goes to its page.Cited by1 Survey: inductive methods from fourteen fieldsSRC0D8NJDAY13ME