| article html file updated | 12 February 2020 01:05 CET | Update | https://www.mdpi.com/2227-7102/9/2/67 |
| article html file updated | 17 October 2019 06:25 CEST | Update | N/A |
| article html file updated | 4 July 2019 17:51 CEST | Update | N/A |
| article html file updated | 25 April 2019 20:58 CEST | Update | N/A |
| article html file updated | 11 April 2019 16:08 CEST | Update | N/A |
| article html file updated | 27 March 2019 10:44 CET | Original file | N/A |
| article pdf uploaded. | 27 March 2019 10:42 CET | Version of Record | https://www.mdpi.com/2227-7102/9/2/67/pdf |
| article xml uploaded. | 27 March 2019 10:42 CET | Update | https://www.mdpi.com/2227-7102/9/2/67/xml |
| article xml file uploaded | 27 March 2019 10:42 CET | Original file | N/A |