| article html file updated | 7 February 2020 19:08 CET | Update | https://www.mdpi.com/2079-9276/5/4/43 |
| article html file updated | 22 September 2019 09:01 CEST | Update | N/A |
| article html file updated | 4 May 2019 20:14 CEST | Update | N/A |
| article html file updated | 30 December 2016 09:14 CET | Update | N/A |
| article html file updated | 6 December 2016 10:02 CET | Original file | N/A |
| article xml uploaded. | 6 December 2016 10:00 CET | Original file | https://www.mdpi.com/2079-9276/5/4/43/xml |
| article pdf uploaded. | 6 December 2016 10:00 CET | Version of Record | https://www.mdpi.com/2079-9276/5/4/43/pdf |
