Skyrmions and the crossover from the integer to fractional quantum Hall effect at small Zeeman energies.
Physical review. B, Condensed matter 47:24 (1993) 16419-16426
Long-range interactions and the quantum Hall effect.
Physical review. B, Condensed matter 46:20 (1992) 13319-13325
Exact diagonalization of finite frustrated spin-(1/2 Heisenberg models.
Physical review. B, Condensed matter 41:7 (1990) 4619-4632
A comment on "Discrete time crystals: rigidity, criticality, and realizations"
Physical Review Letters American Physical Society