| article html file updated | 8 February 2020 03:39 CET | Update | https://www.mdpi.com/2071-1050/9/4/612 |
| article html file updated | 24 September 2019 08:06 CEST | Update | - |
| article html file updated | 4 May 2019 02:06 CEST | Update | - |
| article html file updated | 28 April 2017 11:04 CEST | Update | - |
| article html file updated | 25 April 2017 10:18 CEST | Update | - |
| article xml uploaded. | 25 April 2017 10:17 CEST | Update | https://www.mdpi.com/2071-1050/9/4/612/xml |
| article pdf uploaded. | 25 April 2017 10:17 CEST | Updated version of record | https://www.mdpi.com/2071-1050/9/4/612/pdf |
| article html file updated | 17 April 2017 12:54 CEST | Update | - |
| article pdf uploaded. | 17 April 2017 12:53 CEST | Updated version of record | https://www.mdpi.com/2071-1050/9/4/612/pdf-vor |
| article html file updated | 14 April 2017 17:03 CEST | Original file | - |
| article pdf uploaded. | 14 April 2017 17:02 CEST | Version of Record | https://www.mdpi.com/2071-1050/9/4/612/pdf-vor |
