| article html file updated | 8 February 2020 11:04 CET | Update | https://www.mdpi.com/1999-4907/8/7/250 |
| article html file updated | 25 September 2019 23:08 CEST | Update | - |
| article html file updated | 3 May 2019 12:14 CEST | Update | - |
| article html file updated | 1 August 2017 08:45 CEST | Update | - |
| article html file updated | 14 July 2017 22:36 CEST | Original file | - |
| article xml uploaded. | 14 July 2017 15:40 CEST | Original file | https://www.mdpi.com/1999-4907/8/7/250/xml |
| article pdf uploaded. | 14 July 2017 15:40 CEST | Version of Record | https://www.mdpi.com/1999-4907/8/7/250/pdf |
