Ewins, D. J. Modal testing : theory, practice, and application / D. J. Ewins. - Baldock, Hertfordshire, England ; Philadelphia, PA : Research Studies Press , c2000. - xiii, 562 p. : ill. ; 24 cm. Includes bibliographical references (p. 545-550) and index. ISBN: 0863802184 Subjects--Topical Terms: Structural dynamics--Mathematical models.Vibration--Mathematical models. LC Class. No.: TA355 / .E97 2000