| article html file updated | 7 February 2020 10:34 CET | Update | https://www.mdpi.com/2073-4360/8/6/222 |
| article html file updated | 21 September 2019 19:32 CEST | Update | N/A |
| article html file updated | 5 May 2019 12:11 CEST | Update | N/A |
| article html file updated | 27 March 2019 08:11 CET | Update | N/A |
| article html file updated | 18 March 2019 04:56 CET | Update | N/A |
| article html file updated | 29 June 2016 11:34 CEST | Update | N/A |
| article html file updated | 22 June 2016 12:10 CEST | Original file | N/A |
| article xml uploaded. | 22 June 2016 12:09 CEST | Original file | https://www.mdpi.com/2073-4360/8/6/222/xml |
| article pdf uploaded. | 22 June 2016 12:09 CEST | Version of Record | https://www.mdpi.com/2073-4360/8/6/222/pdf |
