| article html file updated | 8 February 2020 16:39 CET | Update | https://www.mdpi.com/2072-4292/9/9/970 |
| article html file updated | 3 May 2019 01:06 CEST | Update | N/A |
| article html file updated | 1 November 2017 05:22 CET | Update | N/A |
| article html file updated | 30 October 2017 03:56 CET | Update | N/A |
| article html file updated | 30 September 2017 10:34 CEST | Update | N/A |
| article html file updated | 20 September 2017 11:32 CEST | Original file | N/A |
| article xml uploaded. | 20 September 2017 11:30 CEST | Original file | https://www.mdpi.com/2072-4292/9/9/970/xml |
| article pdf uploaded. | 20 September 2017 11:30 CEST | Version of Record | https://www.mdpi.com/2072-4292/9/9/970/pdf |
