| article html file updated | 8 February 2020 02:58 CET | Update | https://www.mdpi.com/2071-1050/9/4/554 |
| article html file updated | 24 September 2019 04:22 CEST | Update | N/A |
| article html file updated | 4 May 2019 03:26 CEST | Update | N/A |
| article html file updated | 28 April 2017 10:55 CEST | Update | N/A |
| article pdf uploaded. | 19 April 2017 12:23 CEST | Updated version of record | https://www.mdpi.com/2071-1050/9/4/554/pdf |
| article html file updated | 9 April 2017 03:14 CEST | Original file | N/A |
| article xml uploaded. | 9 April 2017 03:13 CEST | Update | https://www.mdpi.com/2071-1050/9/4/554/xml |
| article pdf uploaded. | 9 April 2017 03:13 CEST | Updated version of record | https://www.mdpi.com/2071-1050/9/4/554/pdf-vor |
| article pdf uploaded. | 5 April 2017 14:53 CEST | Version of Record | https://www.mdpi.com/2071-1050/9/4/554/pdf-vor |
