| article html file updated | 7 February 2020 17:52 CET | Update | https://www.mdpi.com/2075-4450/7/4/64 |
| article html file updated | 22 September 2019 05:21 CEST | Update | - |
| article html file updated | 4 May 2019 22:48 CEST | Update | - |
| article html file updated | 29 December 2016 04:32 CET | Update | - |
| article html file updated | 11 November 2016 09:59 CET | Original file | - |
| article xml uploaded. | 11 November 2016 09:58 CET | Original file | https://www.mdpi.com/2075-4450/7/4/64/xml |
| article pdf uploaded. | 11 November 2016 09:58 CET | Version of Record | https://www.mdpi.com/2075-4450/7/4/64/pdf |
