IT_BUT021 STRUCTURE BUS021_FS_I
IT_BUT021_OLD STRUCTURE BUS021_FS_I OPTIONAL
ET_BUT021 STRUCTURE BUS021_FS_I
ET_BUT021_OLD STRUCTURE BUS021_FS_I OPTIONAL
ET_BUT021_OLD_AKTYP STRUCTURE BUS021_FS_I OPTIONAL
T_BUT021_FS_OLD STRUCTURE BUS021_FS_I OPTIONAL
T_BUT021_FS STRUCTURE BUS021_FS_I OPTIONAL