| article html file updated | 7 February 2020 06:49 CET | Update | https://www.mdpi.com/2073-4360/8/4/122 |
| article html file updated | 21 September 2019 14:29 CEST | Update | - |
| article html file updated | 5 May 2019 19:35 CEST | Update | - |
| article html file updated | 27 March 2019 01:02 CET | Update | - |
| article html file updated | 15 March 2019 11:56 CET | Update | - |
| article html file updated | 29 April 2016 09:48 CEST | Update | - |
| article html file updated | 5 April 2016 10:35 CEST | Original file | - |
| article xml uploaded. | 5 April 2016 10:33 CEST | Original file | https://www.mdpi.com/2073-4360/8/4/122/xml |
| article pdf uploaded. | 5 April 2016 10:33 CEST | Version of Record | https://www.mdpi.com/2073-4360/8/4/122/pdf |
