| article html file updated | 8 February 2020 11:08 CET | Update | https://www.mdpi.com/1999-4907/8/7/252 |
| article html file updated | 25 September 2019 23:25 CEST | Update | - |
| article html file updated | 3 May 2019 12:08 CEST | Update | - |
| article html file updated | 27 March 2019 16:00 CET | Update | - |
| article html file updated | 1 August 2017 08:45 CEST | Update | - |
| article html file updated | 17 July 2017 08:30 CEST | Update | - |
| article html file updated | 17 July 2017 08:29 CEST | Update | - |
| article html file updated | 17 July 2017 08:28 CEST | Original file | - |
| article xml uploaded. | 17 July 2017 08:27 CEST | Original file | https://www.mdpi.com/1999-4907/8/7/252/xml |
| article pdf uploaded. | 17 July 2017 08:27 CEST | Updated version of record | https://www.mdpi.com/1999-4907/8/7/252/pdf |
| article pdf uploaded. | 15 July 2017 11:55 CEST | Version of Record | https://www.mdpi.com/1999-4907/8/7/252/pdf-vor |
