| article html file updated | 7 February 2020 12:52 CET | Update | https://www.mdpi.com/2075-4701/6/8/181 |
| article html file updated | 5 May 2019 07:56 CEST | Update | - |
| article html file updated | 27 March 2019 12:43 CET | Update | - |
| article html file updated | 26 August 2016 06:42 CEST | Update | - |
| article html file updated | 5 August 2016 12:18 CEST | Original file | - |
| article xml uploaded. | 5 August 2016 12:16 CEST | Update | https://www.mdpi.com/2075-4701/6/8/181/xml |
| article pdf uploaded. | 5 August 2016 12:16 CEST | Version of Record | https://www.mdpi.com/2075-4701/6/8/181/pdf |
