| article html file updated | 8 February 2020 06:13 CET | Update | https://www.mdpi.com/1999-4915/9/5/117 |
| article html file updated | 24 September 2019 21:49 CEST | Update | - |
| article html file updated | 3 May 2019 21:20 CEST | Update | - |
| article html file updated | 2 June 2017 08:32 CEST | Update | - |
| article html file updated | 22 May 2017 04:49 CEST | Update | - |
| article html file updated | 19 May 2017 08:56 CEST | Original file | - |
| article xml uploaded. | 19 May 2017 08:55 CEST | Original file | https://www.mdpi.com/1999-4915/9/5/117/xml |
| article pdf uploaded. | 19 May 2017 08:55 CEST | Version of Record | https://www.mdpi.com/1999-4915/9/5/117/pdf |
