Brooks, R.A. (1990). "Elephants Don't Play Chess" (PDF). Designing Autonomous Agents: Theory and Practice from Biology to Engineering and Back. 6 (1–2): 3–15. CiteSeerX 10.1.1.588.7539. doi:10.1016/S0921-8890(05)80025-9. Retrieved 2009-02-05. http://people.csail.mit.edu/brooks/papers/elephants.pdf
Brooks, R.A. (1990). "Elephants Don't Play Chess" (PDF). Designing Autonomous Agents: Theory and Practice from Biology to Engineering and Back. 6 (1–2): 3–15. CiteSeerX 10.1.1.588.7539. doi:10.1016/S0921-8890(05)80025-9. Retrieved 2009-02-05. http://people.csail.mit.edu/brooks/papers/elephants.pdf
Brooks, R. (1986). "A robust layered control system for a mobile robot" (PDF). IEEE Journal of Robotics and Automation. 2 (1): 14–23. doi:10.1109/JRA.1986.1087032. hdl:1721.1/6432. S2CID 10542804. Retrieved 2009-02-04. http://people.csail.mit.edu/brooks/papers/AIM-864.pdf
Brooks, R.A. (1990). "Elephants Don't Play Chess" (PDF). Designing Autonomous Agents: Theory and Practice from Biology to Engineering and Back. 6 (1–2): 3–15. CiteSeerX 10.1.1.588.7539. doi:10.1016/S0921-8890(05)80025-9. Retrieved 2009-02-05. http://people.csail.mit.edu/brooks/papers/elephants.pdf
Brooks, R. (1986). "A robust layered control system for a mobile robot" (PDF). IEEE Journal of Robotics and Automation. 2 (1): 14–23. doi:10.1109/JRA.1986.1087032. hdl:1721.1/6432. S2CID 10542804. Retrieved 2009-02-04. http://people.csail.mit.edu/brooks/papers/AIM-864.pdf
Brooks, R.A. (1990). "Elephants Don't Play Chess" (PDF). Designing Autonomous Agents: Theory and Practice from Biology to Engineering and Back. 6 (1–2): 3–15. CiteSeerX 10.1.1.588.7539. doi:10.1016/S0921-8890(05)80025-9. Retrieved 2009-02-05. http://people.csail.mit.edu/brooks/papers/elephants.pdf
Brooks, R.A. (1990). "Elephants Don't Play Chess" (PDF). Designing Autonomous Agents: Theory and Practice from Biology to Engineering and Back. 6 (1–2): 3–15. CiteSeerX 10.1.1.588.7539. doi:10.1016/S0921-8890(05)80025-9. Retrieved 2009-02-05. http://people.csail.mit.edu/brooks/papers/elephants.pdf