Realizability of bilinear input-output differential equations in the classigal [i.e. classical] state-space formKotta, Ülle; Mullari, Tanel; Kotta, Palle; Zinober, Alan5th Junior European Meeting on Control & Information Technology : September 20-22, 2006, Tallinn, Estonia : book of abstracts2006 / p. 18

Removing the input derivatives in the generalized bilinear state equationsMullari, Tanel; Kotta, Ülle; Kotta, Palle; Tõnso, Maris; Zinober, AlanProceedings of the Estonian Academy of Sciences2009 / 2, p. 98-107 https://citeseerx.ist.psu.edu/document?repid=rep1&type=pdf&doi=b053956e3600449843044b1022ebefc6d5d19df8