| article html file updated | 7 February 2020 21:07 CET | Update | https://www.mdpi.com/2073-4441/9/1/37 |
| article html file updated | 22 September 2019 19:41 CEST | Update | - |
| article html file updated | 4 May 2019 16:05 CEST | Update | - |
| article html file updated | 7 February 2017 04:30 CET | Update | - |
| article html file updated | 10 January 2017 14:52 CET | Original file | - |
| article xml uploaded. | 10 January 2017 14:51 CET | Update | https://www.mdpi.com/2073-4441/9/1/37/xml |
| article xml uploaded. | 10 January 2017 14:51 CET | Original file | - |
| article pdf uploaded. | 10 January 2017 14:51 CET | Version of Record | https://www.mdpi.com/2073-4441/9/1/37/pdf |
