CREATE TABLE table_15013825_8 (copa_libertadores_1992 VARCHAR(255), copa_conmebol_1992 VARCHAR(255), team VARCHAR(255))
Name the copa libertadores 1992 for round of 16 and team of fluminense
    
SQL: SELECT copa_libertadores_1992 FROM table_15013825_8 WHERE copa_conmebol_1992 = "Round of 16" AND team = "Fluminense"