| article html file updated | 8 February 2020 15:41 CET | Update | https://www.mdpi.com/1999-4907/8/9/335 |
| article html file updated | 27 September 2019 00:44 CEST | Update | - |
| article html file updated | 3 May 2019 02:54 CEST | Update | - |
| article html file updated | 30 September 2017 10:23 CEST | Update | - |
| article html file updated | 11 September 2017 03:09 CEST | Original file | - |
| article xml uploaded. | 11 September 2017 03:08 CEST | Original file | https://www.mdpi.com/1999-4907/8/9/335/xml |
| article pdf uploaded. | 11 September 2017 03:08 CEST | Updated version of record | https://www.mdpi.com/1999-4907/8/9/335/pdf |
| article pdf uploaded. | 8 September 2017 12:43 CEST | Version of Record | https://www.mdpi.com/1999-4907/8/9/335/pdf-vor |
