| article html file updated | 8 February 2020 18:59 CET | Update | https://www.mdpi.com/2313-4321/2/4/17 |
| article html file updated | 27 September 2019 21:38 CEST | Update | N/A |
| article html file updated | 2 May 2019 20:01 CEST | Update | N/A |
| article html file updated | 23 October 2017 08:32 CEST | Update | N/A |
| article xml uploaded. | 23 October 2017 08:31 CEST | Update | https://www.mdpi.com/2313-4321/2/4/17/xml |
| article xml uploaded. | 23 October 2017 08:31 CEST | Update | N/A |
| article pdf uploaded. | 23 October 2017 08:31 CEST | Updated version of record | https://www.mdpi.com/2313-4321/2/4/17/pdf |
| article html file updated | 20 October 2017 12:59 CEST | Original file | N/A |
| article xml uploaded. | 20 October 2017 12:57 CEST | Update | N/A |
| article xml uploaded. | 20 October 2017 12:57 CEST | Original file | N/A |
| article pdf uploaded. | 20 October 2017 12:57 CEST | Version of Record | https://www.mdpi.com/2313-4321/2/4/17/pdf-vor |
