| article html file updated | 8 February 2020 04:06 CET | Update | https://www.mdpi.com/2072-6651/9/4/147 |
| article html file updated | 24 September 2019 10:47 CEST | Update | - |
| article html file updated | 4 May 2019 01:14 CEST | Update | - |
| article html file updated | 28 April 2017 11:17 CEST | Update | - |
| article html file updated | 24 April 2017 03:13 CEST | Original file | - |
| article xml uploaded. | 24 April 2017 03:12 CEST | Original file | https://www.mdpi.com/2072-6651/9/4/147/xml |
| article pdf uploaded. | 24 April 2017 03:12 CEST | Updated version of record | https://www.mdpi.com/2072-6651/9/4/147/pdf |
| article pdf uploaded. | 21 April 2017 14:56 CEST | Version of Record | https://www.mdpi.com/2072-6651/9/4/147/pdf-vor |
