| article html file updated | 7 February 2020 23:48 CET | Update | https://www.mdpi.com/2076-328X/7/1/9 |
| article html file updated | 23 September 2019 10:13 CEST | Update | - |
| article html file updated | 4 May 2019 10:27 CEST | Update | - |
| article html file updated | 30 March 2017 10:55 CEST | Update | - |
| article html file updated | 1 March 2017 02:36 CET | Update | - |
| article xml uploaded. | 1 March 2017 02:35 CET | Update | https://www.mdpi.com/2076-328X/7/1/9/xml |
| article pdf uploaded. | 1 March 2017 02:35 CET | Updated version of record | https://www.mdpi.com/2076-328X/7/1/9/pdf |
| article html file updated | 24 February 2017 07:10 CET | Original file | - |
| article xml uploaded. | 20 February 2017 12:48 CET | Original file | - |
| article pdf uploaded. | 20 February 2017 12:48 CET | Version of Record | https://www.mdpi.com/2076-328X/7/1/9/pdf-vor |
