1. Werbos, P.J.: ‘Approximate dynamic programming for real-time control and neural modeling’, White, D.A., Sofge, D.A., Handbook of intelligent control: neural, fuzzy and adaptive approaches, (Van Nostrand Reinhold, New York, NY, USA 1992), p. 493–525
2. Bellman, R.E.: ‘Dynamic programming’, (Princeton University Press 1957)
3. Adaptive critic designs