A Comparison of BICS and OLAP BAPI for BI | SCN →

This is an important document to reference for anyone converting between different BI reporting tools in the SAP ecosystem. It's also quite an interesting enumeration of the functionality you might expect to see in an OLAP interface.​

The OLAP Compiler in BW-on-HANA →

An overview of how one of the more interesting ​pieces of SAP BW functionality, the "OLAP engine", handles queries. From Thomas Zurek.