| article html file updated | 7 February 2020 21:14 CET | Update | https://www.mdpi.com/2220-9964/6/1/11 |
| article html file updated | 4 May 2019 15:49 CEST | Update | - |
| article html file updated | 8 February 2017 08:49 CET | Update | - |
| article html file updated | 24 January 2017 07:51 CET | Update | - |
| article xml uploaded. | 24 January 2017 07:50 CET | Update | https://www.mdpi.com/2220-9964/6/1/11/xml |
| article pdf uploaded. | 24 January 2017 07:50 CET | Updated version of record | https://www.mdpi.com/2220-9964/6/1/11/pdf |
| article html file updated | 11 January 2017 12:11 CET | Update | - |
| article html file updated | 11 January 2017 12:11 CET | Update | - |
| article html file updated | 11 January 2017 12:11 CET | Original file | - |
| article xml uploaded. | 11 January 2017 12:10 CET | Original file | - |
| article pdf uploaded. | 11 January 2017 12:10 CET | Version of Record | https://www.mdpi.com/2220-9964/6/1/11/pdf-vor |