| article html file updated | 8 February 2020 05:40 CET | Update | https://www.mdpi.com/1999-4907/8/5/168 |
| article html file updated | 24 September 2019 18:54 CEST | Update | - |
| article html file updated | 3 May 2019 22:25 CEST | Update | - |
| article html file updated | 31 May 2017 06:49 CEST | Update | - |
| article html file updated | 23 May 2017 04:05 CEST | Update | - |
| article html file updated | 12 May 2017 08:55 CEST | Original file | - |
| article xml uploaded. | 12 May 2017 08:54 CEST | Update | https://www.mdpi.com/1999-4907/8/5/168/xml |
| article pdf uploaded. | 12 May 2017 08:54 CEST | Version of Record | https://www.mdpi.com/1999-4907/8/5/168/pdf |
