| article html file updated | 8 February 2020 04:36 CET | Update | https://www.mdpi.com/2077-0472/7/5/39 |
| article html file updated | 24 September 2019 13:26 CEST | Update | - |
| article html file updated | 4 May 2019 00:20 CEST | Update | - |
| article html file updated | 31 May 2017 06:24 CEST | Update | - |
| article html file updated | 28 April 2017 11:55 CEST | Original file | - |
| article xml uploaded. | 28 April 2017 11:45 CEST | Update | https://www.mdpi.com/2077-0472/7/5/39/xml |
| article pdf uploaded. | 28 April 2017 11:45 CEST | Version of Record | https://www.mdpi.com/2077-0472/7/5/39/pdf |
