Here are some: https://link.springer.com/article/10.1007/s00382-015-2664-4

http://journals.ametsoc.org/doi/abs/10.1175/JCLI-D-12-00708.1

http://onlinelibrary.wiley.com/doi/10.1002/joc.3834/pdf

https://link.springer.com/article/10.1007%2Fs10584-014-1097-0

http://journals.ametsoc.org/doi/abs/10.1175/JCLI-D-11-00375.1

http://meetingorganizer.copernicus.org/EGU2017/EGU2017-18296.pdf

http://onlinelibrary.wiley.com/doi/10.1002/2015JD023905/full

https://hal.archives-ouvertes.fr/BD_CRC/hal-00967895v1

https://www.researchgate.net/publication/285573012_Assessing_the_Capabilities_of_Three_Regional_Climate_Models_over_CORDEX_Africa_in_Simulating_West_African_Summer_Monsoon_Precipitation?ev=prf_high

Have a look here http://www.csag.uct.ac.za/cordex-africa/cordex-africa-publications/