Notes:
v. 43, no. 4, 1986, p. 30-31; v. 43, no. 6, 1986,p. 46-47; v. 44, no. 2, 1987, p. 34-35; v. 44, no. 4, 1987, p. 31-33; v. 44, no. 6, 1987, p. 44-45;v. 45, no. 2, 1988, p. 46-47; v. 45, no. 4, 1988,p. 24-25; v. 45, no. 6, 1988, p. 37-39; v. 46, no. 2, 1989, p, 43-44; v. 46, no. 4, 1989, p. 30-31; v. 46, no. 5, 1989, p. 14-16; v. 47, no. 3, 1990, p. 24-25; v. 47, no. 5, 1990, p. 18-20; v. 47, no. 6, 1990, p. 16-18; v. 48, no. 3, 1991, p. 38-39; v. 48, no. 4, 1991, p. 49; 2, 1989, p. 43-44; v. 46, no. 2, 1989, p, 43-44; v. 46, no. 4, 1989, p. 30-31; v. 46, no. 5, 1989, p. 14-16; v. 47, no. 3, 1990, p. 24-25; v. 47, no. 5, 1990, p. 18-20; v. 47, no. 6, 1990, p. 16-18; v. 48, no. 3, 1991, p. 38-39; v. 48, no. 4, 1991, p. 49; v. 49, no. 1, 1992, p. 14-15; v. 49, no. 3, 1992, p. 30-31.