Srinathkumar, S.: 'Eigenstructure Control Algorithms: Applications to aircraft/rotorcraft handling qualities design' (Control, Robotics and Sensors, 2011) DOI: 
IET Digital Library, https://digital-library.theiet.org/;jsessionid=4k84kt05w85ew.x-iet-live-01content/books/ce/pbce074e