| article html file updated | 7 February 2020 09:30 CET | Update | https://www.mdpi.com/2073-4360/8/6/211 |
| article html file updated | 21 September 2019 18:09 CEST | Update | - |
| article html file updated | 5 May 2019 14:12 CEST | Update | - |
| article html file updated | 27 March 2019 06:11 CET | Update | - |
| article html file updated | 18 March 2019 04:53 CET | Update | - |
| article html file updated | 29 June 2016 11:24 CEST | Update | - |
| article html file updated | 31 May 2016 09:58 CEST | Original file | - |
| article xml uploaded. | 31 May 2016 09:56 CEST | Update | https://www.mdpi.com/2073-4360/8/6/211/xml |
| article pdf uploaded. | 31 May 2016 09:56 CEST | Version of Record | https://www.mdpi.com/2073-4360/8/6/211/pdf |
