| article html file updated | 12 February 2020 17:16 CET | Update | https://www.mdpi.com/2409-9287/4/2/29 |
| article html file updated | 3 June 2019 12:04 CEST | Original file | N/A |
| article pdf uploaded. | 3 June 2019 12:03 CEST | Version of Record | https://www.mdpi.com/2409-9287/4/2/29/pdf |
| article xml uploaded. | 3 June 2019 12:03 CEST | Update | https://www.mdpi.com/2409-9287/4/2/29/xml |
| article xml file uploaded | 3 June 2019 12:03 CEST | Original file | N/A |
