| article html file updated | 7 February 2020 23:16 CET | Update | https://www.mdpi.com/2072-6643/9/2/135 |
| article html file updated | 23 September 2019 07:14 CEST | Update | N/A |
| article html file updated | 4 May 2019 11:29 CEST | Update | N/A |
| article html file updated | 2 March 2017 03:51 CET | Update | N/A |
| article html file updated | 14 February 2017 05:18 CET | Original file | N/A |
| article xml uploaded. | 14 February 2017 05:17 CET | Update | https://www.mdpi.com/2072-6643/9/2/135/xml |
| article xml uploaded. | 14 February 2017 05:17 CET | Original file | N/A |
| article pdf uploaded. | 14 February 2017 05:17 CET | Version of Record | https://www.mdpi.com/2072-6643/9/2/135/pdf |
