| article html file updated | 7 February 2020 11:26 CET | Update | https://www.mdpi.com/2075-4701/6/7/157 |
| article html file updated | 5 May 2019 10:37 CEST | Update | N/A |
| article html file updated | 27 March 2019 09:48 CET | Update | N/A |
| article html file updated | 29 July 2016 13:09 CEST | Update | N/A |
| article html file updated | 9 July 2016 10:34 CEST | Original file | N/A |
| article xml uploaded. | 9 July 2016 10:33 CEST | Original file | https://www.mdpi.com/2075-4701/6/7/157/xml |
| article pdf uploaded. | 9 July 2016 10:33 CEST | Version of Record | https://www.mdpi.com/2075-4701/6/7/157/pdf |
