https://www.sciencedirect.com/science/article/pii/S001632871730112X?casa_token=ool_Vn6ocisAAAAA:wZX_7uzrnDPv4TOBhD07O72wb-iSvWEXRDpWY13nKXeTD-ycuda0qmseijXb4kucTEhQ3SRAfnui 2018 General Medium
https://www.sciencedirect.com/science/article/pii/S001632871730112X?casa_token=ool_Vn6ocisAAAAA:wZX_7uzrnDPv4TOBhD07O72wb-iSvWEXRDpWY13nKXeTD-ycuda0qmseijXb4kucTEhQ3SRAfnui 2018 General Medium