RT Journal Article SR Electronic(1) A1 Kefer, Michel YR 1986 T1 On Functional Explanations of Language Change, Universals and Rules JF Belgian Journal of Linguistics VO 1 IS 1 SP 53 OP 66 DO https://doi.org/10.1075/bjl.1.03kef PB John Benjamins SN 0774-5141, AB , UL https://www.jbe-platform.com/content/journals/10.1075/bjl.1.03kef