• Laguerre state equations of a multivariable discrete time systemJaaksoo, Ülo; Nurges, ÜloControl science and technology for the progress of society : IFAC 8th Triennial World Congress, Aug. 24-28, 1981, Kyoto, Japan, Preprints. Vol.1-20, 22-231981 / p. 56-62 https://www.ester.ee/record=b2014744*est