There is a very good paper you would like to read it: https://watermark.silverchair.com/plx027.pdf?token=AQECAHi208BE49Ooan9kkhW_Ercy7Dm3ZL_9Cf3qfKAc485ysgAAAk4wggJKBgkqhkiG9w0BBwagggI7MIICNwIBADCCAjAGCSqGSIb3DQEHATAeBglghkgBZQMEAS4wEQQMTLER9DmMeb5J8vhjAgEQgIICAb_FH35Cf6cpK1GJTPblcyOqSIW1NmNN3zteWdctVjCovkwYy1hi-mrwushmFShZMUohKfRYoWEYFDIY7fsKbR3BzE8QII7cRL5E2fdU-pJQSpm1BdOWC5YAD8i8gAnH7_ai6o4piHEq4nHIj-R0tbu84pW2JolL4_05XlSHR3KKVD4kOvANWgCXnuxZ77aZ_O1Em066T5qI7pkTDGBJtTZ7z0OM56srpdE4oneejtADwB3Lb8g9hFHycjuG_DaAD-S0XYQBJwQReWk3iSMadLfdZwyzxVIQLoEqLaEmDSix7PhnGat-KS3AeZfs67Q-CfIT613i7sbxF2wuShzNp1NcdO5fRToW8U3V0daDSbEdWKD_OwEq5Vx_AP6tmkM4_CEz9qxlz4NV3ofpHcItihHe_c8nSM1kSKQJQsko0pVUJysRH_RN8CiAlgNF6WqGVXkVVQW2SkrV5DJV1E6_C9Eafzpr4jTNZY7SaRzzl8OEtRD7i2nuiCSaY0qOxW2bdzT1bhhRrIpPv-ij2ieBhz_THY5uc7j3-1izv_wdJ-7TpJRd2jlIxnInSCOnOT7PX48gcg3dusyL5-HnjJDomr1qWDf-8CS5-x834GlyDeDp60PEcavnRimc20uGqACyd4GDbtUr0AQ7h29O3m1LhacsrnSRDAj-PCyqkUqco_-8SQ