REFERENCE(BAHNCARD_NUMBER) TYPE PA0475-PRGNR
REFERENCE(P_BAHNCARD_NUMBER) TYPE PA0475-PRGNR
REFERENCE(BAHNCARD) TYPE PA0475-PRGNR OPTIONAL
REFERENCE(BAHNCARD) TYPE PA0475-PRGNR
REFERENCE(BAHNCARD_NUMBER) TYPE PA0475-PRGNR OPTIONAL
REFERENCE(BAHNCARD_NUMBER) LIKE PA0475-PRGNR