| article html file updated | 7 February 2020 15:35 CET | Update | https://www.mdpi.com/2079-6382/5/4/34 |
| article html file updated | 22 September 2019 01:42 CEST | Update | N/A |
| article html file updated | 5 May 2019 03:01 CEST | Update | N/A |
| article html file updated | 27 December 2016 02:11 CET | Update | N/A |
| article html file updated | 27 September 2016 04:36 CEST | Original file | N/A |
| article xml uploaded. | 27 September 2016 04:35 CEST | Original file | https://www.mdpi.com/2079-6382/5/4/34/xml |
| article pdf uploaded. | 27 September 2016 04:35 CEST | Version of Record | https://www.mdpi.com/2079-6382/5/4/34/pdf |
