Complex sentence: Openshaw and Veneris (2003) succeeded in linking these two major regional theories in a clear and theoretically consistent way: using the data they derived from the operationalization of CPT, they experimented with several SIM.
Split into simpler sentences: Openshaw and Veneris (2003) succeeded in linking these two major regional theories in a clear and theoretically consistent way. Using the data they derived from the operationalization of CPT, the applied several SIM.