Não informado. (1981). IEEE Control Systems Magazine. Institute of Electrical and Electronics Engineers, Control Systems Society.
Lua i Stíl Chicago (17ú heag.)Não informado. IEEE Control Systems Magazine. New York: Institute of Electrical and Electronics Engineers, Control Systems Society, 1981.
Lua MLA (8ú heag.)Não informado. IEEE Control Systems Magazine. Institute of Electrical and Electronics Engineers, Control Systems Society, 1981.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.