| article html file updated | 7 February 2020 16:55 CET | Update | https://www.mdpi.com/2078-2489/7/4/59 |
| article html file updated | 22 September 2019 03:51 CEST | Update | - |
| article html file updated | 5 May 2019 00:34 CEST | Update | - |
| article html file updated | 29 December 2016 11:05 CET | Update | - |
| article html file updated | 25 October 2016 09:56 CEST | Original file | - |
| article xml uploaded. | 25 October 2016 09:55 CEST | Original file | https://www.mdpi.com/2078-2489/7/4/59/xml |
| article pdf uploaded. | 25 October 2016 09:55 CEST | Version of Record | https://www.mdpi.com/2078-2489/7/4/59/pdf |
