Integro-Difference Equation for a correlation function of the spin-${1\over2}$ Heisenberg XXZ chain
(1995)
Commensurability effects in large Josephson junctions
Physical Review B American Physical Society (APS) 51:10 (1995) 6515-6525
Dual Field Approach to Correlation Functions in the Heisenberg Xxz Spin Chain
(1995)