| article html file updated | 7 February 2020 22:34 CET | Update | https://www.mdpi.com/2072-6643/9/2/102 |
| article html file updated | 23 September 2019 03:22 CEST | Update | - |
| article html file updated | 4 May 2019 12:53 CEST | Update | - |
| article html file updated | 2 March 2017 03:41 CET | Update | - |
| article html file updated | 12 February 2017 04:39 CET | Original file | - |
| article xml uploaded. | 12 February 2017 04:38 CET | Original file | https://www.mdpi.com/2072-6643/9/2/102/xml |
| article pdf uploaded. | 12 February 2017 04:38 CET | Updated version of record | https://www.mdpi.com/2072-6643/9/2/102/pdf |
| article pdf uploaded. | 2 February 2017 11:30 CET | Version of Record | https://www.mdpi.com/2072-6643/9/2/102/pdf-vor |
