Sine-Gordon low-energy effective theory for copper benzoate
PHYSICAL REVIEW B 59:22 (1999) 14376-14383
Sine-Gordon quantum magnets
INTERNATIONAL JOURNAL OF MODERN PHYSICS B 13:24-25 (1999) 2915-2925
Faceting Transition in an Exactly Solvable Terrace-Ledge-Kink model
(1998)