Z. Trajanoski, P. Wach, P. Kotanko, and F. Skrabal. System Modelling and Optimization, volume 197 of Lecture Notes in Control and Information Sciences, page 412-421. Springer, (1993)
M. Skrabal, P. Vondricka, and V. Cvrcek. Baltic HLT, volume 328 of Frontiers in Artificial Intelligence and Applications, page 207-214. IOS Press, (2020)