| article html file updated | 8 February 2020 07:26 CET | Update | https://www.mdpi.com/2072-4292/9/6/557 |
| article html file updated | 25 September 2019 04:01 CEST | Update | N/A |
| article html file updated | 3 May 2019 19:03 CEST | Update | N/A |
| article html file updated | 30 June 2017 09:37 CEST | Update | N/A |
| article html file updated | 5 June 2017 05:05 CEST | Update | N/A |
| article xml uploaded. | 5 June 2017 05:03 CEST | Update | https://www.mdpi.com/2072-4292/9/6/557/xml |
| article pdf uploaded. | 5 June 2017 05:03 CEST | Updated version of record | https://www.mdpi.com/2072-4292/9/6/557/pdf |
| article html file updated | 3 June 2017 13:44 CEST | Original file | N/A |
| article pdf uploaded. | 3 June 2017 13:42 CEST | Version of Record | https://www.mdpi.com/2072-4292/9/6/557/pdf-vor |
