Blum, L., Karp, R. M., Cucker, F., Schub, M., & Smale, S. (1998). Complexity and real computation. New York: Springer.

Blum, Lenore, Richard M. Karp, Felipe Cucker, Michael Schub, and Steve Smale. Complexity and Real Computation. New York: Springer, 1998.

Blum, Lenore, et al. Complexity and Real Computation. New York: Springer, 1998.