@misc(nguyen05mdd, 
  author    = {Linh Anh Nguyen},
  title     = {On Modal Deductive Databases},
  booktitle = {Proceedings of ADBIS 2005, LNCS 3631}, 
  editor    = {J. Eder and H.-M. Haav and A. Kalja and J. Penjam},
  publisher = {Springer},
  pages     = {43-57}, 
  year      = 2005)