@incollection{Lockwood01-relations,
  author	= {Lockwood, David G.},
  editor	= {Fries, Peter H. and Cummings, Michael and Lockwood, David and Spruiell, William},
  title		= {Intrastratal and interstratal relations in language and their functions},
  booktitle	= {Relations and functions within and around language},
  publisher	= {Continuum Press},
  year		= {2001},
  series	= {Open Linguistics},
  address	= {London}
}