1. Monographs on classical invariant theory: Elliot (1913), Fogarty (1969), Grace and Young (1903), Gurevich (1948b), Procesi (1982), Schur (1968), Spencer (1971), Springer (1977), Weitzenböck (1923).
2. Monographs on modern invariant theory: Dieudonné and Carrell (1971), Fogarty (1969), Kraft (1984), Kraft, Petrie, and Schwarz (1989), Kraft, Slodowy, and Springer (1989), Mumford (1965), Mumford and Fogarty ( 1982 ), V.L. Popov (1992a).
3. Surveys: Kung and Rota (1984), Parshin (1974), V.L. Popov (1979a), (19866), (1991), Vinberg (1982b).
4. Invariant theory of binary forms: Alekseev (1899), Dickson (1914), (1966), Dixmier and Lazard (1985/86), Elliot (1913), Gordan (1987), Grace and Young (1903), Gurevich (1948b), Khadzhiev (1978), Shioda (1967), Springer (1977).
5. Invariants and orbits of specific linear groups: Beklemishev (1981), (1982), Gurevich (1948b), Kraft (1984) (cubic forms in three or four variables)