| article html file updated | 8 February 2020 10:55 CET | Update | https://www.mdpi.com/2075-1729/7/3/31 |
| article html file updated | 25 September 2019 22:17 CEST | Update | - |
| article html file updated | 3 May 2019 12:33 CEST | Update | - |
| article html file updated | 30 September 2017 11:28 CEST | Update | - |
| article html file updated | 17 July 2017 08:20 CEST | Update | - |
| article html file updated | 17 July 2017 08:19 CEST | Update | - |
| article html file updated | 17 July 2017 08:18 CEST | Original file | - |
| article xml uploaded. | 17 July 2017 08:16 CEST | Original file | https://www.mdpi.com/2075-1729/7/3/31/xml |
| article pdf uploaded. | 17 July 2017 08:16 CEST | Updated version of record | https://www.mdpi.com/2075-1729/7/3/31/pdf |
| article pdf uploaded. | 13 July 2017 12:05 CEST | Version of Record | https://www.mdpi.com/2075-1729/7/3/31/pdf-vor |
