| article html file updated | 8 February 2020 04:39 CET | Update | https://www.mdpi.com/2073-4360/9/5/157 |
| article html file updated | 24 September 2019 13:38 CEST | Update | - |
| article html file updated | 4 May 2019 00:16 CEST | Update | - |
| article html file updated | 18 March 2019 05:40 CET | Update | - |
| article html file updated | 31 May 2017 10:18 CEST | Update | - |
| article html file updated | 28 April 2017 14:44 CEST | Original file | - |
| article xml uploaded. | 28 April 2017 14:42 CEST | Original file | https://www.mdpi.com/2073-4360/9/5/157/xml |
| article pdf uploaded. | 28 April 2017 14:42 CEST | Version of Record | https://www.mdpi.com/2073-4360/9/5/157/pdf |
