| article html file updated | 8 February 2020 10:00 CET | Update | https://www.mdpi.com/2079-9284/4/3/22 |
| article html file updated | 25 September 2019 17:41 CEST | Update | N/A |
| article html file updated | 3 May 2019 14:14 CEST | Update | N/A |
| article html file updated | 4 July 2017 07:55 CEST | Original file | N/A |
| article xml uploaded. | 4 July 2017 07:54 CEST | Original file | https://www.mdpi.com/2079-9284/4/3/22/xml |
| article pdf uploaded. | 4 July 2017 07:54 CEST | Version of Record | https://www.mdpi.com/2079-9284/4/3/22/pdf |
