| article html file updated | 8 February 2020 04:09 CET | Update | https://www.mdpi.com/2073-4360/9/4/145 |
| article html file updated | 24 September 2019 10:59 CEST | Update | - |
| article html file updated | 4 May 2019 01:10 CEST | Update | - |
| article html file updated | 18 March 2019 05:37 CET | Update | - |
| article html file updated | 28 April 2017 10:39 CEST | Update | - |
| article html file updated | 21 April 2017 16:07 CEST | Original file | - |
| article xml uploaded. | 21 April 2017 16:06 CEST | Original file | https://www.mdpi.com/2073-4360/9/4/145/xml |
| article pdf uploaded. | 21 April 2017 16:06 CEST | Version of Record | https://www.mdpi.com/2073-4360/9/4/145/pdf |
