1. Saburo Matsumoto and Richard Rannard, The regular projective solution space of the figure-eight knot complement, Experiment. Math. 9 (2000), no. 2, 221–234.[MR]
  2. Richard Rannard, Computing immersed normal surfaces in the figure-eight knot complement, Experiment. Math. 8 (1999), no. 1, 73–84.[MR]