| article html file updated | 7 February 2020 07:18 CET | Update | https://www.mdpi.com/2073-8994/8/4/22 |
| article html file updated | 5 May 2019 18:33 CEST | Update | - |
| article html file updated | 27 March 2019 01:58 CET | Update | - |
| article html file updated | 27 April 2016 10:55 CEST | Update | - |
| article html file updated | 21 April 2016 05:45 CEST | Update | - |
| article xml uploaded. | 21 April 2016 05:44 CEST | Update | https://www.mdpi.com/2073-8994/8/4/22/xml |
| article pdf uploaded. | 21 April 2016 05:44 CEST | Updated version of record | https://www.mdpi.com/2073-8994/8/4/22/pdf |
| article html file updated | 15 April 2016 09:09 CEST | Original file | - |
| article pdf uploaded. | 15 April 2016 09:08 CEST | Version of Record | https://www.mdpi.com/2073-8994/8/4/22/pdf-vor |
