| article html file updated | 8 February 2020 23:52 CET | Update | https://www.mdpi.com/2073-4441/9/12/969 |
| article html file updated | 29 September 2019 03:54 CEST | Update | N/A |
| article html file updated | 2 May 2019 09:01 CEST | Update | N/A |
| article html file updated | 18 April 2019 06:46 CEST | Update | N/A |
| article html file updated | 2 January 2018 16:52 CET | Update | N/A |
| article html file updated | 13 December 2017 10:52 CET | Original file | N/A |
| article xml uploaded. | 13 December 2017 10:50 CET | Original file | https://www.mdpi.com/2073-4441/9/12/969/xml |
| article pdf uploaded. | 13 December 2017 10:50 CET | Updated version of record | https://www.mdpi.com/2073-4441/9/12/969/pdf |
| article pdf uploaded. | 12 December 2017 13:06 CET | Version of Record | https://www.mdpi.com/2073-4441/9/12/969/pdf-vor |
