| article html file updated | 8 February 2020 20:50 CET | Update | https://www.mdpi.com/2411-5134/2/4/29 |
| article html file updated | 28 September 2019 09:13 CEST | Update | N/A |
| article html file updated | 2 May 2019 15:47 CEST | Update | N/A |
| article html file updated | 13 November 2017 04:57 CET | Original file | N/A |
| article xml uploaded. | 13 November 2017 04:55 CET | Update | https://www.mdpi.com/2411-5134/2/4/29/xml |
| article xml uploaded. | 13 November 2017 04:55 CET | Original file | N/A |
| article pdf uploaded. | 13 November 2017 04:55 CET | Updated version of record | https://www.mdpi.com/2411-5134/2/4/29/pdf |
| article pdf uploaded. | 10 November 2017 13:10 CET | Version of Record | https://www.mdpi.com/2411-5134/2/4/29/pdf-vor |
