| article html file updated | 7 February 2020 17:18 CET | Update | https://www.mdpi.com/2079-9276/5/4/33 |
| article html file updated | 22 September 2019 04:25 CEST | Update | N/A |
| article html file updated | 4 May 2019 23:52 CEST | Update | N/A |
| article html file updated | 30 December 2016 09:12 CET | Update | N/A |
| article html file updated | 1 November 2016 04:18 CET | Original file | N/A |
| article xml uploaded. | 1 November 2016 04:17 CET | Original file | https://www.mdpi.com/2079-9276/5/4/33/xml |
| article pdf uploaded. | 1 November 2016 04:17 CET | Version of Record | https://www.mdpi.com/2079-9276/5/4/33/pdf |
