Self-tuning adaptive control of cement raw material blending. - László Keviczky; Jenö Hetthéssy; Miklós Hilger; János Kolostori (Autom., 1978)

Identification and adaptive control of a glass furnace. - Robert Haber; Jenö Hetthéssy; László Keviczky; István Vajk; A. Fehér; N. Czeiner; Z. Császár; A. Turi (Autom., 1981)

Adaptive load-frequency control of the hungarian power system. - István Vajk; Miklos Vajta; László Keviczky; Robert Haber; Jenö Hetthéssy; Gábor Kovács (Autom., 1985)

Sensitivity Reduction of Dynamic NN Approximations. - István Vajk; Jenö Hetthéssy; Hassan Charaf (NC, 1998)

An improved version of the Koopmans-levin algorithm. - István Vajk; Jenö Hetthéssy (ECC, 2001)

Identification of nonlinear errors-in-variables models. - István Vajk; Jenö Hetthéssy (Autom., 2003)

On the Generalization of the Koopmans-Levin Estimation Method. - István Vajk; Jenö Hetthéssy (CDC/ECC, 2005)

Control Theory for Automation - Advanced Techniques. - István Vajk; Jenö Hetthéssy; Ruth Bars (Handbook of Automation, 2009)