| article html file updated | 8 February 2020 23:54 CET | Update | https://www.mdpi.com/1999-4907/8/12/497 |
| article html file updated | 29 September 2019 04:10 CEST | Update | - |
| article html file updated | 2 May 2019 08:56 CEST | Update | - |
| article html file updated | 18 April 2019 06:41 CEST | Update | - |
| article html file updated | 2 January 2018 17:10 CET | Update | - |
| article html file updated | 12 December 2017 15:09 CET | Original file | - |
| article xml uploaded. | 12 December 2017 15:08 CET | Update | https://www.mdpi.com/1999-4907/8/12/497/xml |
| article xml uploaded. | 12 December 2017 15:08 CET | Original file | - |
| article pdf uploaded. | 12 December 2017 15:08 CET | Version of Record | https://www.mdpi.com/1999-4907/8/12/497/pdf |
