@Book{saad96,
  author = 	 "Saad, Y.",
  title = 	 "Iterative Methods For Sparse Linear Systems",
  publisher = 	 "Ed. PWS publishing Compagny",
  year = 	 "1996",
  OPTkey = 	 {},
  OPTvolume = 	 {},
  OPTnumber = 	 {},
  OPTseries = 	 {},
  OPTaddress = 	 {},
  OPTedition = 	 {},
  OPTmonth = 	 {},
  OPTnote = 	 {},
  OPTannote = 	 {}
}
