GÜRSEY'S CHIRAL MODEL AND ITS MODIFICATIONS ArticleSanyuk Valerii I.Strings and symmetries (Istanbul, 1994). 1995. P.. 326-331
SOME NEW INTEGRABLE SYSTEMS WITH EXACT SOLUTIONS OF THE PATTERN-SOLITON TYPE ArticleMakhankov V.G., Sanyuk V.I.Nonlinear evolution equations & dynamical systems: NEEDS '94 (Los Alamos, NM). 1995. P.. 129-142