| article html file updated | 7 February 2020 06:23 CET | Update | https://www.mdpi.com/2073-4441/8/4/116 |
| article html file updated | 5 May 2019 20:27 CEST | Update | - |
| article html file updated | 27 March 2019 00:18 CET | Update | - |
| article html file updated | 28 April 2016 12:15 CEST | Update | - |
| article html file updated | 31 March 2016 02:56 CEST | Update | - |
| article xml uploaded. | 31 March 2016 02:48 CEST | Update | https://www.mdpi.com/2073-4441/8/4/116/xml |
| article pdf uploaded. | 31 March 2016 02:48 CEST | Updated version of record | https://www.mdpi.com/2073-4441/8/4/116/pdf |
| article html file updated | 25 March 2016 07:56 CET | Original file | - |
| article pdf uploaded. | 25 March 2016 07:55 CET | Version of Record | https://www.mdpi.com/2073-4441/8/4/116/pdf-vor |
