1. Impact, The Theory and Physical Behaviour of Colliding Solids;Goldsmith,1960
2. Impact Wear of Materials;Engel,1976
3. Factors associated with support plate forces due to heat exchanger tube vibratory contact;Rogers;Nuclear Engineering and Design,1977
4. Impact under harmonic excitation;Whiston;Journal of Sound and Vibration,1979
5. The periodic vibration with impacts in mechanical discrete systems;Cempel;Politechnika Poznanska, Rozprawy Nr 44, Poznan,1970