| article html file updated | 11 February 2020 13:17 CET | Update | https://www.mdpi.com/2227-7102/9/1/31 |
| article html file updated | 14 October 2019 08:50 CEST | Update | N/A |
| article html file updated | 26 April 2019 22:04 CEST | Update | N/A |
| article html file updated | 12 April 2019 17:53 CEST | Update | N/A |
| article html file updated | 10 April 2019 21:16 CEST | Update | N/A |
| article html file updated | 3 April 2019 14:02 CEST | Update | N/A |
| article html file updated | 28 February 2019 11:34 CET | Update | N/A |
| article html file updated | 12 February 2019 12:22 CET | Original file | N/A |
| article pdf uploaded. | 12 February 2019 12:21 CET | Updated version of record | https://www.mdpi.com/2227-7102/9/1/31/pdf |
| article xml uploaded. | 12 February 2019 12:21 CET | Update | https://www.mdpi.com/2227-7102/9/1/31/xml |
| article xml file uploaded | 12 February 2019 12:21 CET | Update | N/A |
| article pdf uploaded. | 1 February 2019 13:55 CET | Version of Record | https://www.mdpi.com/2227-7102/9/1/31/pdf-vor |
| article xml file uploaded | 1 February 2019 13:55 CET | Original file | N/A |
