| article html file updated | 8 February 2020 16:32 CET | Update | https://www.mdpi.com/2673-351X/2/3/6 |
| article html file updated | 3 May 2019 01:20 CEST | Update | - |
| article html file updated | 18 September 2017 15:44 CEST | Update | - |
| article xml uploaded. | 18 September 2017 15:43 CEST | Update | https://www.mdpi.com/2673-351X/2/3/6/xml |
| article pdf uploaded. | 18 September 2017 15:43 CEST | Updated version of record | https://www.mdpi.com/2673-351X/2/3/6/pdf |
| article html file updated | 18 September 2017 15:31 CEST | Original file | - |
| article xml uploaded. | 18 September 2017 15:29 CEST | Original file | - |
| article pdf uploaded. | 18 September 2017 15:29 CEST | Version of Record | - |
