| article html file updated | 7 February 2020 21:03 CET | Update | https://www.mdpi.com/2072-6643/9/1/48 |
| article html file updated | 22 September 2019 19:24 CEST | Update | - |
| article html file updated | 4 May 2019 16:13 CEST | Update | - |
| article html file updated | 7 February 2017 12:28 CET | Update | - |
| article html file updated | 9 January 2017 10:50 CET | Original file | - |
| article xml uploaded. | 9 January 2017 10:49 CET | Original file | https://www.mdpi.com/2072-6643/9/1/48/xml |
| article pdf uploaded. | 9 January 2017 10:49 CET | Version of Record | https://www.mdpi.com/2072-6643/9/1/48/pdf |
