From the reviews: When placed in the context of a mechanical or aerospace engineering program at a typical US university, the worked example problems in these … texts are very advanced. … could be incorporated into both undergraduate and graduate level vibrations courses, as well as a graduate level non-linear vibrations course." (Sally A. McInerny ... Read moreand Stanley E. Jones, International Journal of Acoustics and Vibration, Vol. 10 (4), 2006) "The book is a collection of problems concerned with vibrations of systems with finite number of degrees of freedom. The formulated problems are associated with determination of frequencies and forms of vibrations, with the analysis of forced vibrations, and with the investigation of stable and unstable vibrations. The book may be regarded as a problem book for students and engineers working in the area of vibrations of engineering structures." (Yuri N.Sankin, Zentralblatt MATH, Vol. 1123 (1), 2008) Show Less