| article html file updated | 7 February 2020 07:00 CET | Update | https://www.mdpi.com/2072-6643/8/4/207 |
| article html file updated | 5 May 2019 19:13 CEST | Update | N/A |
| article html file updated | 27 March 2019 01:22 CET | Update | N/A |
| article html file updated | 28 April 2016 09:24 CEST | Update | N/A |
| article html file updated | 8 April 2016 11:25 CEST | Original file | N/A |
| article xml uploaded. | 8 April 2016 11:24 CEST | Original file | https://www.mdpi.com/2072-6643/8/4/207/xml |
| article pdf uploaded. | 8 April 2016 11:24 CEST | Version of Record | https://www.mdpi.com/2072-6643/8/4/207/pdf |
