| article html file updated | 7 February 2020 07:12 CET | Update | https://www.mdpi.com/2411-5142/1/2/167 |
| article html file updated | 5 May 2019 18:46 CEST | Update | - |
| article html file updated | 27 March 2019 01:45 CET | Update | - |
| article html file updated | 13 April 2016 10:46 CEST | Original file | - |
| article xml uploaded. | 13 April 2016 10:45 CEST | Original file | https://www.mdpi.com/2411-5142/1/2/167/xml |
| article pdf uploaded. | 13 April 2016 10:45 CEST | Version of Record | https://www.mdpi.com/2411-5142/1/2/167/pdf |
