| article html file updated | 9 February 2020 00:24 CET | Update | https://www.mdpi.com/2079-9268/7/4/33 |
| article html file updated | 29 September 2019 07:05 CEST | Update | N/A |
| article html file updated | 2 May 2019 07:53 CEST | Update | N/A |
| article html file updated | 18 April 2019 05:42 CEST | Update | N/A |
| article html file updated | 18 December 2017 09:48 CET | Original file | N/A |
| article xml uploaded. | 18 December 2017 09:46 CET | Update | https://www.mdpi.com/2079-9268/7/4/33/xml |
| article xml uploaded. | 18 December 2017 09:46 CET | Update | N/A |
| article xml uploaded. | 18 December 2017 09:46 CET | Original file | N/A |
| article pdf uploaded. | 18 December 2017 09:46 CET | Version of Record | https://www.mdpi.com/2079-9268/7/4/33/pdf |
