1. Longitudinal vibrations of elastic rods in the presence of dry friction;Nikitin;Mekh. Tverdogo Tela,1978
2. Damping by dry friction of dynamic forces in fibre composite;Nikitin;Mekh. Kompositnykh Materialov,1986
3. Study of the Earth by nonexplosive seismic sources;Nikolaev,1981