| article html file updated | 7 February 2020 05:02 CET | Update | https://www.mdpi.com/2312-7481/2/1/11 |
| article html file updated | 5 May 2019 23:15 CEST | Update | - |
| article html file updated | 26 March 2019 21:43 CET | Update | - |
| article html file updated | 8 June 2016 09:23 CEST | Original file | - |
| article pdf uploaded. | 25 February 2016 15:03 CET | Version of Record | https://www.mdpi.com/2312-7481/2/1/11/pdf |
| article xml uploaded. | 25 February 2016 15:03 CET | Original file | https://www.mdpi.com/2312-7481/2/1/11/xml |
