| article html file updated | 8 February 2020 03:30 CET | Update | https://www.mdpi.com/2072-6643/9/4/381 |
| article html file updated | 24 September 2019 07:10 CEST | Update | - |
| article html file updated | 4 May 2019 02:23 CEST | Update | - |
| article html file updated | 28 April 2017 11:50 CEST | Update | - |
| article html file updated | 17 April 2017 06:03 CEST | Original file | - |
| article xml uploaded. | 17 April 2017 06:02 CEST | Original file | https://www.mdpi.com/2072-6643/9/4/381/xml |
| article pdf uploaded. | 17 April 2017 06:02 CEST | Updated version of record | https://www.mdpi.com/2072-6643/9/4/381/pdf |
| article pdf uploaded. | 13 April 2017 10:42 CEST | Version of Record | https://www.mdpi.com/2072-6643/9/4/381/pdf-vor |
