HDF5 "h5ex_t_objref_F03.h5" { GROUP "/" { DATASET "DS1" { DATATYPE H5T_REFERENCE { H5T_STD_REF_OBJECT } DATASPACE SIMPLE { ( 2 ) / ( 2 ) } DATA { (0): GROUP 1400 /G1 , DATASET 800 /DS2 } } DATASET "DS2" { DATATYPE H5T_STD_I32LE DATASPACE NULL DATA { } } GROUP "G1" { } } }