Schmid, Maureen Alicia. 1980. Co-occurrence Restrictions in Negative, Interrogative, and Conditional Clauses: A Cross-Linguistic Study.
@misc{Schmid-1980, author = {Schmid, Maureen Alicia}, school = {State University of New York at Buffalo}, title = {Co-occurrence Restrictions in Negative, Interrogative, and Conditional Clauses: A Cross-Linguistic Study}, year = {1980} }