| article html file updated | 8 February 2020 04:34 CET | Update | https://www.mdpi.com/2073-4360/9/5/156 |
| article html file updated | 24 September 2019 13:13 CEST | Update | - |
| article html file updated | 4 May 2019 00:24 CEST | Update | - |
| article html file updated | 18 March 2019 05:40 CET | Update | - |
| article html file updated | 31 May 2017 10:17 CEST | Update | - |
| article html file updated | 28 April 2017 07:41 CEST | Original file | - |
| article xml uploaded. | 28 April 2017 07:40 CEST | Update | https://www.mdpi.com/2073-4360/9/5/156/xml |
| article pdf uploaded. | 28 April 2017 07:40 CEST | Version of Record | https://www.mdpi.com/2073-4360/9/5/156/pdf |
