From the book reviews: "The problems and facts of interest are presented in a very well organized manner and the usual roughness of some technical aspects is avoided by treating them in a natural way, closer to a practical engineering approach. ... The monograph gives a complete presentation of the state of the art in the theory of system realization, and will be a fruitful reading for researchers at all levels in this area." (Tiberiu Vasilache, Mathematical Reviews, January, 2015) "The book is well, clearly written and hence is easy to follow for the reader. There are many illustrating examples. The book is recommended for researchers and students who are interested in the modern system theory." (Krzysztof Galkowski, zbMATH, Vol. 1297, 2014)

• Realization problem of 1D standard linear systems.- Realization problem of 1D positive regular linear systems.- Realization problem of 1D positive regular linear systemswith delays.- Positive stable realization problem for 1D regular linear systems.- Positive realization problem of 1D descriptor linear systems.- Positive realization problem for 1D regular fractionallinear systems.- Positive realization problem for 1D descriptor fractionallinear systems.-Positive realization problem for 2D continuous-discretelinear systems.