| article html file updated | 8 February 2020 05:21 CET | Update | https://www.mdpi.com/1999-4907/8/5/158 |
| article html file updated | 24 September 2019 17:18 CEST | Update | - |
| article html file updated | 3 May 2019 22:59 CEST | Update | - |
| article html file updated | 31 May 2017 06:53 CEST | Update | - |
| article html file updated | 23 May 2017 03:53 CEST | Update | - |
| article html file updated | 8 May 2017 14:26 CEST | Original file | - |
| article xml uploaded. | 8 May 2017 14:24 CEST | Original file | https://www.mdpi.com/1999-4907/8/5/158/xml |
| article pdf uploaded. | 8 May 2017 14:24 CEST | Version of Record | https://www.mdpi.com/1999-4907/8/5/158/pdf |
