In Russian. Komar, Aston Antonovich. The trajectories of Rege and the mass spectra of infinite relativistically invariant equations. Moscow: 1971. Traektorii Redzhe i spektry mass beskonechnomernykh relyativistski invariantnykh uravneniy. In Russian /Redzhe trajectories and mass spectra of infinite relativistically invariant equations . All images are for identification of editions only. Several books of the same edition may be available. Please feel free to request photos of available books. SKU7406085