1. 1
    by Rogala, Jozef
    Published 2001
    ...Japan Library,...
    Book
  2. 2
    ...National Library of Australia,...
    Book
  3. 3
    by Bingham, Tricia
    Published 2009
    ...University of Auckland Library,...
    Connect to electronic resource
    Electronic eBook
  4. 4
    Published 1977
    ...Library of the Hungarian Academy of Sciences,...
    Conference Proceeding Journal