Cewen Cao, Yongtang Wu, Xianguo Geng, “On quasi-periodic solutions of the 2+1 dimensional Caudrey–Dodd–Gibbon–Kotera–Sawada equation”, Physics Letters A, 256:1 (1999), 59
Ronnie Dickson, Fritz Gesztesy, Karl Unterkofler, “A New Approach to the Boussinesq Hierarchy”, Mathematische Nachrichten, 198:1 (1999), 51
Rudi Weikard, “Picard Operators”, Mathematische Nachrichten, 195:1 (1998), 251
F. Gesztesy, H. Holden, The IMA Volumes in Mathematics and its Applications, 89, Multiparticle Quantum Scattering With Applications to Nuclear, Atomic and Molecular Physics, 1997, 121
B. M. Levitan, Lecture Notes in Physics, 488, Inverse and Algebraic Quantum Scattering Theory, 1997, 13
Fritz Gesztesy, Barry Simon, “The xi function”, Acta Math., 176:1 (1996), 49
Fritz Gesztesy, Rudi Weikard, “Picard potentials and Hill's equation on a torus”, Acta Math., 176:1 (1996), 73
F. Gesztesy, H. Holden, B. Simon, “Absolute summability of the trace relation for certain Schrödinger operators”, Commun.Math. Phys., 168:1 (1995), 137
F. Gesztesy, H. Holden, KdV '95, 1995, 315
F. Gesztesy, R. Weikard, “Treibich-Verdier potentials and the stationary (m)KDV hierarchy”, Math Z, 219:1 (1995), 451