| article html file updated | 8 February 2020 17:11 CET | Update | https://www.mdpi.com/2079-3197/5/4/43 |
| article html file updated | 3 May 2019 00:02 CEST | Update | N/A |
| article html file updated | 2 January 2018 16:56 CET | Update | N/A |
| article html file updated | 26 September 2017 12:59 CEST | Original file | N/A |
| article xml uploaded. | 26 September 2017 12:32 CEST | Original file | https://www.mdpi.com/2079-3197/5/4/43/xml |
| article pdf uploaded. | 26 September 2017 12:32 CEST | Version of Record | https://www.mdpi.com/2079-3197/5/4/43/pdf |
