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2. R.K. Brylinski, The mixed tensor character of the nullcone and Hall-Littlewood Symmetric functions, in preparation.
3. R.K. Brylinski, Stable calculus of the mixed tensor character II, in preparation.
4. R.K. Gupta, Generalized Exponents via Hall-Littlewood symmetric functions, Bull. Amer. Math. Soc. (new series) 16, no. 2, April (1987), 287–291.
5. R.K. Gupta and P. Hanlon, Problem 5 in Problem Session, Combinatorics and Algebra, ed. by C. Greene, Contempory Mathematics 34, Amer Math. Soc. (1984), p. 305–307.