| article html file updated | 7 February 2020 21:34 CET | Update | https://www.mdpi.com/2072-6651/9/1/37 |
| article html file updated | 4 May 2019 15:00 CEST | Update | - |
| article html file updated | 7 February 2017 13:41 CET | Update | - |
| article html file updated | 17 January 2017 12:16 CET | Update | - |
| article xml uploaded. | 17 January 2017 12:15 CET | Update | https://www.mdpi.com/2072-6651/9/1/37/xml |
| article pdf uploaded. | 17 January 2017 12:15 CET | Updated version of record | https://www.mdpi.com/2072-6651/9/1/37/pdf |
| article html file updated | 17 January 2017 08:50 CET | Original file | - |
| article xml uploaded. | 17 January 2017 08:49 CET | Original file | - |
| article pdf uploaded. | 17 January 2017 08:49 CET | Version of Record | https://www.mdpi.com/2072-6651/9/1/37/pdf-vor |
