| article html file updated | 9 February 2020 04:10 CET | Update | https://www.mdpi.com/2073-4433/9/2/37 |
| article html file updated | 30 September 2019 04:24 CEST | Update | - |
| article html file updated | 1 May 2019 23:55 CEST | Update | - |
| article html file updated | 17 April 2019 22:27 CEST | Update | - |
| article html file updated | 28 March 2019 17:59 CET | Update | - |
| article html file updated | 14 March 2018 10:16 CET | Update | - |
| article html file updated | 24 January 2018 10:01 CET | Original file | - |
| article xml uploaded. | 24 January 2018 09:59 CET | Original file | https://www.mdpi.com/2073-4433/9/2/37/xml |
| article pdf uploaded. | 24 January 2018 09:59 CET | Version of Record | https://www.mdpi.com/2073-4433/9/2/37/pdf |
