| article html file updated | 16 July 2022 07:12 CEST | Update | https://www.mdpi.com/1999-4907/8/11/421 |
| article html file updated | 8 February 2020 20:21 CET | Update | - |
| article html file updated | 28 September 2019 05:53 CEST | Update | - |
| article html file updated | 2 May 2019 16:56 CEST | Update | - |
| article html file updated | 30 November 2017 16:05 CET | Update | - |
| article html file updated | 8 November 2017 11:43 CET | Update | - |
| article xml uploaded. | 8 November 2017 11:42 CET | Update | https://www.mdpi.com/1999-4907/8/11/421/xml |
| article pdf uploaded. | 8 November 2017 11:42 CET | Updated version of record | https://www.mdpi.com/1999-4907/8/11/421/pdf |
| article html file updated | 4 November 2017 10:54 CET | Original file | - |
| article xml uploaded. | 4 November 2017 10:53 CET | Original file | - |
| article pdf uploaded. | 4 November 2017 10:53 CET | Version of Record | https://www.mdpi.com/1999-4907/8/11/421/pdf-vor |
