https://papers.ssrn.com/sol3/papers.cfm?abstract_id=5306434
https://papers.ssrn.com/sol3/papers.cfm?abstract_id=5306612
https://papers.ssrn.com/sol3/papers.cfm?abstract_id=5306700
https://papers.ssrn.com/sol3/papers.cfm?abstract_id=5306847
https://papers.ssrn.com/sol3/papers.cfm?abstract_id=5306903
