[Evaluation of the dynamics of in-group strain during long-term isolation]. - Sykora Ia; Nechaev AP; Shol'tsova I; Bakhbukh R; Konopasek P; Kozerenko OP; Kazda L; Urban A; Miller L; Tomechek A; Batik K (Aviakosmicheskaia i ekologicheskaia meditsina = Aerospace and environmental medicine, 1997)