| article html file updated | 9 February 2020 04:16 CET | Update | https://www.mdpi.com/2079-6382/7/1/4 |
| article html file updated | 30 September 2019 05:03 CEST | Update | N/A |
| article html file updated | 1 May 2019 23:43 CEST | Update | N/A |
| article html file updated | 17 April 2019 22:16 CEST | Update | N/A |
| article html file updated | 28 March 2019 18:12 CET | Update | N/A |
| article html file updated | 27 March 2018 14:18 CEST | Update | N/A |
| article html file updated | 25 January 2018 05:17 CET | Original file | N/A |
| article xml uploaded. | 25 January 2018 05:16 CET | Original file | https://www.mdpi.com/2079-6382/7/1/4/xml |
| article pdf uploaded. | 25 January 2018 05:16 CET | Version of Record | https://www.mdpi.com/2079-6382/7/1/4/pdf |
