| Citation | Verified | Memento | |
|---|---|---|---|
| 📖 | https://ssrn.com/abstract=3054989 | 2018.04.24 |
|
| 📖 | https://ssrn.com/abstract=2905847 | 2018.04.24 | |
| 📖 | https://ssrn.com/abstract=3054989 | 2018.04.24 |