REFERENCE(ES_NODE_TEXT) TYPE WRF_MATGRP_STRCT
REFERENCE(EX_WRF_NODE_TXT) TYPE WRF_MATGRP_STRCT-LTEXT
REFERENCE(SPRAS) LIKE WRF_MATGRP_STRCT-SPRAS OPTIONAL
REFERENCE(C_MATGRP_STRUCT) TYPE WRF_MATGRP_STRCT OPTIONAL
REFERENCE(XS_MATGRP_STRUCT) TYPE WRF_MATGRP_STRCT OPTIONAL
REFERENCE(HIERID) LIKE WRF_MATGRP_STRCT-HIER_ID
REFERENCE(NODE) LIKE WRF_MATGRP_STRCT-NODE
REFERENCE(SPRAS) LIKE WRF_MATGRP_STRCT-SPRAS