TY - JOUR AU - Dubickas, A. AU - Smyth, C. J. TI - Variations on the theme of Hilbert's theorem 90 JO - Glasgow mathematical journal PY - 2002 SP - 435 EP - 441 VL - 44 IS - 3 UR - http://geodesic.mathdoc.fr/articles/10.1017/S0017089502030082/ DO - 10.1017/S0017089502030082 ID - 10_1017_S0017089502030082 ER -