| article html file updated | 8 February 2020 03:12 CET | Update | https://www.mdpi.com/2071-1050/9/4/573 |
| article html file updated | 24 September 2019 05:40 CEST | Update | N/A |
| article html file updated | 4 May 2019 02:56 CEST | Update | N/A |
| article html file updated | 28 April 2017 10:59 CEST | Update | N/A |
| article html file updated | 11 April 2017 12:07 CEST | Original file | N/A |
| article xml uploaded. | 11 April 2017 12:06 CEST | Original file | https://www.mdpi.com/2071-1050/9/4/573/xml |
| article pdf uploaded. | 11 April 2017 12:06 CEST | Updated version of record | https://www.mdpi.com/2071-1050/9/4/573/pdf |
| article pdf uploaded. | 9 April 2017 10:36 CEST | Version of Record | https://www.mdpi.com/2071-1050/9/4/573/pdf-vor |
