| article html file updated | 7 February 2020 23:00 CET | Update | https://www.mdpi.com/2073-4441/9/2/104 |
| article html file updated | 23 September 2019 05:50 CEST | Update | - |
| article html file updated | 4 May 2019 12:02 CEST | Update | - |
| article html file updated | 1 March 2017 08:04 CET | Update | - |
| article html file updated | 20 February 2017 11:23 CET | Update | - |
| article xml uploaded. | 20 February 2017 11:22 CET | Update | https://www.mdpi.com/2073-4441/9/2/104/xml |
| article pdf uploaded. | 20 February 2017 11:22 CET | Updated version of record | https://www.mdpi.com/2073-4441/9/2/104/pdf |
| article html file updated | 13 February 2017 11:44 CET | Original file | - |
| article xml uploaded. | 13 February 2017 11:43 CET | Original file | - |
| article pdf uploaded. | 13 February 2017 11:43 CET | Updated version of record | https://www.mdpi.com/2073-4441/9/2/104/pdf-vor |
| article pdf uploaded. | 9 February 2017 16:20 CET | Version of Record | https://www.mdpi.com/2073-4441/9/2/104/pdf-vor |
