| article html file updated | 7 February 2020 20:40 CET | Update | https://www.mdpi.com/2072-4292/9/1/30 |
| article html file updated | 22 September 2019 17:15 CEST | Update | N/A |
| article html file updated | 4 May 2019 17:02 CEST | Update | N/A |
| article html file updated | 8 February 2017 10:20 CET | Update | N/A |
| article html file updated | 6 January 2017 12:09 CET | Original file | N/A |
| article xml uploaded. | 6 January 2017 12:08 CET | Original file | https://www.mdpi.com/2072-4292/9/1/30/xml |
| article pdf uploaded. | 6 January 2017 12:08 CET | Updated version of record | https://www.mdpi.com/2072-4292/9/1/30/pdf |
| article pdf uploaded. | 2 January 2017 11:16 CET | Version of Record | https://www.mdpi.com/2072-4292/9/1/30/pdf-vor |
