| article html file updated | 8 February 2020 03:13 CET | Update | https://www.mdpi.com/2073-4395/7/2/27 |
| article html file updated | 24 September 2019 05:45 CEST | Update | - |
| article html file updated | 4 May 2019 02:55 CEST | Update | - |
| article html file updated | 28 June 2017 12:21 CEST | Update | - |
| article html file updated | 21 April 2017 11:10 CEST | Update | - |
| article xml uploaded. | 21 April 2017 11:09 CEST | Update | https://www.mdpi.com/2073-4395/7/2/27/xml |
| article pdf uploaded. | 21 April 2017 11:09 CEST | Updated version of record | https://www.mdpi.com/2073-4395/7/2/27/pdf |
| article html file updated | 11 April 2017 12:26 CEST | Original file | - |
| article pdf uploaded. | 11 April 2017 12:25 CEST | Updated version of record | https://www.mdpi.com/2073-4395/7/2/27/pdf-vor |
| article pdf uploaded. | 9 April 2017 12:12 CEST | Version of Record | https://www.mdpi.com/2073-4395/7/2/27/pdf-vor |
