Traugott, Elizabeth Closs. 1989. On the Rise of Epistemic Meaning in English: an Example of Subjectification in Semantic Change. Language 65. 31-55.
@article{Traugott-1989, author = {Traugott, Elizabeth Closs}, journal = {Language}, pages = {31-55}, title = {On the Rise of Epistemic Meaning in English: an Example of Subjectification in Semantic Change}, volume = {65}, year = {1989} }