| article html file updated | 8 February 2020 02:57 CET | Update | https://www.mdpi.com/2079-9284/4/2/11 |
| article html file updated | 24 September 2019 04:19 CEST | Update | N/A |
| article html file updated | 4 May 2019 03:28 CEST | Update | N/A |
| article html file updated | 5 April 2017 22:20 CEST | Original file | N/A |
| article xml uploaded. | 5 April 2017 15:11 CEST | Original file | https://www.mdpi.com/2079-9284/4/2/11/xml |
| article pdf uploaded. | 5 April 2017 15:11 CEST | Version of Record | https://www.mdpi.com/2079-9284/4/2/11/pdf |
