| article html file updated | 8 February 2020 06:39 CET | Update | https://www.mdpi.com/1999-4915/9/6/110 |
| article html file updated | 25 September 2019 00:03 CEST | Update | - |
| article html file updated | 3 May 2019 20:31 CEST | Update | - |
| article html file updated | 29 June 2017 12:03 CEST | Update | - |
| article html file updated | 27 June 2017 08:17 CEST | Update | - |
| article xml uploaded. | 27 June 2017 08:15 CEST | Update | https://www.mdpi.com/1999-4915/9/6/110/xml |
| article pdf uploaded. | 27 June 2017 08:15 CEST | Updated version of record | https://www.mdpi.com/1999-4915/9/6/110/pdf |
| article html file updated | 24 May 2017 16:32 CEST | Original file | - |
| article pdf uploaded. | 24 May 2017 16:30 CEST | Version of Record | https://www.mdpi.com/1999-4915/9/6/110/pdf-vor |
