| article html file updated | 8 February 2020 06:51 CET | Update | https://www.mdpi.com/2073-4360/9/6/192 |
| article html file updated | 25 September 2019 01:09 CEST | Update | N/A |
| article html file updated | 3 May 2019 20:08 CEST | Update | N/A |
| article html file updated | 18 March 2019 05:50 CET | Update | N/A |
| article html file updated | 28 June 2017 14:17 CEST | Update | N/A |
| article html file updated | 27 May 2017 09:15 CEST | Original file | N/A |
| article xml uploaded. | 27 May 2017 09:14 CEST | Original file | https://www.mdpi.com/2073-4360/9/6/192/xml |
| article pdf uploaded. | 27 May 2017 09:14 CEST | Version of Record | https://www.mdpi.com/2073-4360/9/6/192/pdf |
