| article html file updated | 28 November 2020 12:06 CET | Original file | https://www.mdpi.com/2227-9717/8/12/1570 |
| article pdf uploaded. | 28 November 2020 12:04 CET | Version of Record | https://www.mdpi.com/2227-9717/8/12/1570/pdf |
| article xml uploaded. | 28 November 2020 12:04 CET | Update | https://www.mdpi.com/2227-9717/8/12/1570/xml |
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