| article html file updated | 8 February 2020 09:29 CET | Update | https://www.mdpi.com/2413-8851/1/3/23 |
| article html file updated | 25 September 2019 14:46 CEST | Update | - |
| article html file updated | 3 May 2019 15:12 CEST | Update | - |
| article html file updated | 28 June 2017 15:06 CEST | Original file | - |
| article xml uploaded. | 28 June 2017 14:52 CEST | Original file | https://www.mdpi.com/2413-8851/1/3/23/xml |
| article pdf uploaded. | 28 June 2017 14:52 CEST | Updated version of record | https://www.mdpi.com/2413-8851/1/3/23/pdf |
| article pdf uploaded. | 28 June 2017 13:31 CEST | Version of Record | https://www.mdpi.com/2413-8851/1/3/23/pdf-vor |
