+%ghdl, the least shitty of the open source vhdl tools
+@misc{ghdl,
+ title = "GHDL Guide",
+ author = "Tristan Gingold",
+ year = "2007",
+ howpublished = "\url{http://ghdl.free.fr/ghdl/}"
+}
+
+@article{demmel1996basic,
+ title = "Basic Issues in Floating Point Arithmetic and Error Analysis",
+ author = "Jim Demmel",
+ journal = "U.C. Berkeley CS267",
+ note = "Lecture Notes",
+ howpublished = "\url{http://www.cs.berkeley.edu/~demmel/cs267/lecture21/lecture21.html}"
+}
+
+@misc{grfpu_dasia,
+ title = "GRFPU - High Performance IEEE- 7 5 4 Floating- Point Unit",
+ author = "Edvin Catovic",
+ howpublished = "\url{http://www.gaisler.com/doc/grfpu_dasia.pdf}"
+}