| article html file updated | 7 February 2020 03:06 CET | Update | https://www.mdpi.com/2073-4360/8/1/3 |
| article html file updated | 21 September 2019 09:11 CEST | Update | - |
| article html file updated | 6 May 2019 03:13 CEST | Update | - |
| article html file updated | 26 March 2019 17:50 CET | Update | - |
| article html file updated | 15 March 2019 08:07 CET | Original file | - |
| article pdf uploaded. | 6 January 2016 15:26 CET | Version of Record | https://www.mdpi.com/2073-4360/8/1/3/pdf |
| article xml uploaded. | 6 January 2016 15:26 CET | Original file | https://www.mdpi.com/2073-4360/8/1/3/xml |
