1. 1
    Published 1998
    ...Ashgate Pub.,...
    Conference Proceeding Book
  2. 2
    by Houngnikpo, Mathurin C.
    Published 2010
    ...Ashgate Pub.,...
    Connect to electronic resource
    Electronic eBook
  3. 3
    Published 2011
    ...Ashgate Pub. Co.,...
    Connect to electronic resource
    Electronic eBook