| article html file updated | 8 February 2020 07:43 CET | Update | https://www.mdpi.com/2071-1050/9/6/976 |
| article html file updated | 25 September 2019 05:31 CEST | Update | N/A |
| article html file updated | 3 May 2019 18:31 CEST | Update | N/A |
| article html file updated | 28 June 2017 14:42 CEST | Update | N/A |
| article html file updated | 12 June 2017 05:35 CEST | Update | N/A |
| article xml uploaded. | 12 June 2017 05:34 CEST | Update | https://www.mdpi.com/2071-1050/9/6/976/xml |
| article pdf uploaded. | 12 June 2017 05:34 CEST | Updated version of record | https://www.mdpi.com/2071-1050/9/6/976/pdf |
| article html file updated | 7 June 2017 14:02 CEST | Original file | N/A |
| article pdf uploaded. | 7 June 2017 14:01 CEST | Version of Record | https://www.mdpi.com/2071-1050/9/6/976/pdf-vor |
