1. Quasi-exactly-solvable problems andsl(2) algebra
2. A. Ushveridze, Fiz. Elem. Chast. At. Yad. 20, 1989, 1185, [, Sov. J. Part. Nucl., 20, 1989, 504, ] and earlier works of the same author cited therein; see also A. Ushveridze, “Quasi-Exactly Solvable Models in Quantum Mechanics,”, Institute of Physics, Bristol, 1994.
3. Quantal problems with partial algebraization of the spectrum
4. Lie algebras of differential operators and Lie-algebraic potentials
5. ITEP Lectures in Particle Physics and Field Theory;Shifman,1999