M. P.  Safonova, Safonov, V. I., and Tikhonova, B. B., ?Introduktsionnoe i biokhimicheskoe issledovanie vidov zveroboya na Sakhaline.?, in Ekol.-fenol. issled v Sakhalin. obl.Vladivostok, 1984, pp. 79-90 (1984) -.