| article html file updated | 8 February 2020 23:38 CET | Update | https://www.mdpi.com/1999-4907/8/12/494 |
| article html file updated | 29 September 2019 02:35 CEST | Update | - |
| article html file updated | 2 May 2019 09:33 CEST | Update | - |
| article html file updated | 18 April 2019 07:15 CEST | Update | - |
| article html file updated | 2 January 2018 17:10 CET | Update | - |
| article html file updated | 11 December 2017 04:38 CET | Original file | - |
| article xml uploaded. | 11 December 2017 04:37 CET | Original file | https://www.mdpi.com/1999-4907/8/12/494/xml |
| article pdf uploaded. | 11 December 2017 04:37 CET | Updated version of record | https://www.mdpi.com/1999-4907/8/12/494/pdf |
| article pdf uploaded. | 9 December 2017 11:21 CET | Version of Record | https://www.mdpi.com/1999-4907/8/12/494/pdf-vor |
