| article html file updated | 7 February 2020 08:12 CET | Update | https://www.mdpi.com/2079-8954/4/2/20 |
| article html file updated | 5 May 2019 16:46 CEST | Update | N/A |
| article html file updated | 27 March 2019 03:45 CET | Update | N/A |
| article html file updated | 4 July 2016 11:07 CEST | Update | N/A |
| article html file updated | 5 May 2016 06:32 CEST | Original file | N/A |
| article xml uploaded. | 5 May 2016 06:30 CEST | Original file | https://www.mdpi.com/2079-8954/4/2/20/xml |
| article pdf uploaded. | 5 May 2016 06:30 CEST | Version of Record | https://www.mdpi.com/2079-8954/4/2/20/pdf |
