0187-893X 0187-893X S0187-893X2015000300242 10.1016/j.eq.2015.03.001 CO CO 00 00 2015 00 00 2015 26 3 242 249

1991 1997 2007 1998 1987 1998 2009 2012 23 280-9 1995 5 55-63 1997 1984 2007 1972 1963 1983 1960 2010 195-209 1975 1989