Hi Francois & José Jaimes,
BPC for MS is not integrated in Netweaver platform that's why you didn't find any documentation about real estate.
There aren't relations just with BI you can use Xcelsius dashboard or ODBC to read the cubes but I don't think you will found the files to connect with RE.
If you need to insert data in BPC from RE you need to export this data in a flat file and after to Import in BPC through the standard import package using transformation and conversion files, to transfer data from BPC to RE use the standard export package.
Regards
Roberto