| article html file updated | 8 February 2020 00:09 CET | Update | https://www.mdpi.com/2073-4441/9/3/157 |
| article html file updated | 23 September 2019 12:16 CEST | Update | - |
| article html file updated | 4 May 2019 09:40 CEST | Update | - |
| article html file updated | 28 March 2017 03:22 CEST | Update | - |
| article html file updated | 24 February 2017 07:34 CET | Original file | - |
| article xml uploaded. | 24 February 2017 07:33 CET | Update | https://www.mdpi.com/2073-4441/9/3/157/xml |
| article xml uploaded. | 24 February 2017 07:33 CET | Original file | - |
| article pdf uploaded. | 24 February 2017 07:33 CET | Version of Record | https://www.mdpi.com/2073-4441/9/3/157/pdf |
