Coordination in Tree Adjoining Grammars: Formalization and   Implementation
  In this paper we show that an account for coordination can be constructed using the derivation structures in a lexicalized Tree Adjoining Grammar (LTAG). We present a notion of derivation in LTAGs that preserves the notion of fixed constituency in the LTAG lexicon while providing the flexibility needed for coordination phenomena. We also discuss the construction of a practical parser for LTAGs that can handle coordination including cases of non-constituent coordination. 
Anoop Sarkar and Aravind Joshi (Dept of Computer and Information   Science, University of Pennsylvania)