1. Classical single-particle frictional motion is treated in, e.g. R R Long,Engineering Science and Mechanics (Prentice Hall, New Jersey, 1963) p. 251
2. H Goldstein,Classical Mechanics (Addison Wesley/Narosa, New Delhi, 1985) p. 24
3. P Caldirola,Nuovo Cimento. 18, 393 (1941)
4. P Havas,Nuovo Cimento Lett. Suppl. 5, 363 (1957)
5. W U Schroder and J R Huizenga,Ann. Rev. Nucl. Sci. 27, 465 (1977)