| article html file updated | 8 February 2020 03:57 CET | Update | https://www.mdpi.com/2077-1312/5/2/18 |
| article html file updated | 24 September 2019 09:53 CEST | Update | - |
| article html file updated | 4 May 2019 01:32 CEST | Update | - |
| article html file updated | 27 October 2017 10:59 CEST | Update | - |
| article html file updated | 19 April 2017 15:15 CEST | Original file | - |
| article xml uploaded. | 19 April 2017 15:14 CEST | Original file | https://www.mdpi.com/2077-1312/5/2/18/xml |
| article pdf uploaded. | 19 April 2017 15:14 CEST | Version of Record | https://www.mdpi.com/2077-1312/5/2/18/pdf |
