| article html file updated | 12 February 2020 04:58 CET | Update | https://www.mdpi.com/2227-7102/9/2/79 |
| article html file updated | 18 October 2019 06:00 CEST | Update | N/A |
| article html file updated | 4 July 2019 17:54 CEST | Update | N/A |
| article html file updated | 25 April 2019 12:36 CEST | Update | N/A |
| article html file updated | 12 April 2019 14:41 CEST | Original file | N/A |
| article pdf uploaded. | 12 April 2019 14:40 CEST | Updated version of record | https://www.mdpi.com/2227-7102/9/2/79/pdf |
| article xml uploaded. | 12 April 2019 14:40 CEST | Update | https://www.mdpi.com/2227-7102/9/2/79/xml |
| article xml file uploaded | 12 April 2019 14:40 CEST | Update | N/A |
| article xml file uploaded | 12 April 2019 14:14 CEST | Original file | N/A |
