Javier Hormigo Julio Villalba Emilio L. Zapata CORDIC Processor for Variable-Precision Interval Arithmetic. 21-39 2004 37 VLSI Signal Processing 1 http://dx.doi.org/10.1023/B:VLSI.0000017001.88149.f4 db/journals/vlsisp/vlsisp37.html#HormigoVZ04