1. Lecture Notes in Computer Science;P. Bose,1997
2. Lecture Notes in Computer Science;F.J. Cobos,1996
3. Dean, A.M., Evans, W., Gethner, E., Laison, J.D., Safari, M.A., Trotter, W.T.: Bar k-visibility graphs. Manuscript (2005)
4. Lecture Notes in Computer Science;A.M. Dean,2006
5. Lecture Notes in Computer Science;A.M. Dean,2005