| article html file updated | 8 February 2020 06:38 CET | Update | https://www.mdpi.com/2073-4360/9/6/186 |
| article html file updated | 24 September 2019 23:59 CEST | Update | N/A |
| article html file updated | 3 May 2019 20:32 CEST | Update | N/A |
| article html file updated | 18 March 2019 05:49 CET | Update | N/A |
| article html file updated | 28 June 2017 14:16 CEST | Update | N/A |
| article html file updated | 24 May 2017 14:47 CEST | Original file | N/A |
| article xml uploaded. | 24 May 2017 14:46 CEST | Original file | https://www.mdpi.com/2073-4360/9/6/186/xml |
| article pdf uploaded. | 24 May 2017 14:46 CEST | Version of Record | https://www.mdpi.com/2073-4360/9/6/186/pdf |
