https://www.sciencedirect.com/science/article/pii/S0304380017300960?casa_token=jRfEGJGE6NcAAAAA:hLklJqkK7Z0eloqV9SnCn9ZW_l6LF87ekiGytbBvKitT9eGXoVfYeJpWHp_PK3-ndqKF7JJSUQ
https://www.sciencedirect.com/science/article/pii/S1001074214002484?casa_token=6pWAMwJfofwAAAAA:tQADY26KLfLdGrYJKRIgbulROTSF0sT-s-y2u1R8rUL033f6mHvxlZgEMWhL5d68oftSgQ1k6g
https://www.sciencedirect.com/science/article/pii/S1618866717302182?casa_token=Apnb5pXx9SAAAAAA:3n4IMcjpp06tHULDSj2azDpFr_K3cwpzIfpst3iAkyeEWNAnRs5RNFZNydiX0BR2gEyfuDo67Q