MultiTree is a searchable database of hypotheses on language relationships.
compare language trees and access bibliographical information on them
see a graphical representation of every scholarly hypothesis on language relationships
view information on every language
share comments on hypotheses and add new hypotheses (as a registered user)
access an interactive map of the language or family of your choice through LLMap
A. Abeille, D. Godard, and I. Sag. Complex Predicates in Nonderivational Syntax, volume 30 of Syntax and Semantics, chapter 1, Academic Press, New York, (1998)