| article html file updated | 7 February 2020 22:33 CET | Update | https://www.mdpi.com/1660-4601/14/2/139 |
| article html file updated | 23 September 2019 03:16 CEST | Update | - |
| article html file updated | 4 May 2019 12:57 CEST | Update | - |
| article html file updated | 2 March 2017 10:29 CET | Update | - |
| article html file updated | 14 February 2017 10:41 CET | Original file | - |
| article xml uploaded. | 14 February 2017 10:39 CET | Original file | https://www.mdpi.com/1660-4601/14/2/139/xml |
| article pdf uploaded. | 14 February 2017 10:39 CET | Updated version of record | https://www.mdpi.com/1660-4601/14/2/139/pdf |
| article pdf uploaded. | 1 February 2017 11:37 CET | Version of Record | https://www.mdpi.com/1660-4601/14/2/139/pdf-vor |
