| article html file updated | 8 February 2020 10:04 CET | Update | https://www.mdpi.com/1999-4907/8/7/237 |
| article html file updated | 25 September 2019 18:06 CEST | Update | - |
| article html file updated | 3 May 2019 14:04 CEST | Update | - |
| article html file updated | 1 August 2017 08:43 CEST | Update | - |
| article html file updated | 4 July 2017 15:15 CEST | Original file | - |
| article xml uploaded. | 4 July 2017 15:14 CEST | Original file | https://www.mdpi.com/1999-4907/8/7/237/xml |
| article pdf uploaded. | 4 July 2017 15:14 CEST | Version of Record | https://www.mdpi.com/1999-4907/8/7/237/pdf |
