| article html file updated | 7 February 2020 22:08 CET | Update | https://www.mdpi.com/2073-4352/7/2/23 |
| article html file updated | 23 September 2019 01:02 CEST | Update | - |
| article html file updated | 4 May 2019 13:46 CEST | Update | - |
| article html file updated | 2 March 2017 03:36 CET | Update | - |
| article html file updated | 3 February 2017 11:01 CET | Update | - |
| article xml uploaded. | 3 February 2017 10:59 CET | Update | https://www.mdpi.com/2073-4352/7/2/23/xml |
| article pdf uploaded. | 3 February 2017 10:59 CET | Updated version of record | https://www.mdpi.com/2073-4352/7/2/23/pdf |
| article html file updated | 24 January 2017 10:28 CET | Original file | - |
| article xml uploaded. | 24 January 2017 10:27 CET | Update | - |
| article xml uploaded. | 24 January 2017 10:27 CET | Original file | - |
| article pdf uploaded. | 24 January 2017 10:27 CET | Version of Record | https://www.mdpi.com/2073-4352/7/2/23/pdf-vor |
