| article html file updated | 8 February 2020 03:41 CET | Update | https://www.mdpi.com/2072-6651/9/4/141 |
| article html file updated | 24 September 2019 08:17 CEST | Update | N/A |
| article html file updated | 4 May 2019 02:03 CEST | Update | N/A |
| article html file updated | 28 April 2017 11:17 CEST | Update | N/A |
| article html file updated | 19 April 2017 04:46 CEST | Original file | N/A |
| article xml uploaded. | 19 April 2017 04:45 CEST | Original file | https://www.mdpi.com/2072-6651/9/4/141/xml |
| article pdf uploaded. | 19 April 2017 04:45 CEST | Updated version of record | https://www.mdpi.com/2072-6651/9/4/141/pdf |
| article pdf uploaded. | 15 April 2017 09:12 CEST | Version of Record | https://www.mdpi.com/2072-6651/9/4/141/pdf-vor |
