| article html file updated | 8 February 2020 18:31 CET | Update | https://www.mdpi.com/2227-9717/5/4/59 |
| article html file updated | 27 September 2019 18:50 CEST | Update | - |
| article html file updated | 2 May 2019 21:09 CEST | Update | - |
| article html file updated | 2 January 2018 11:40 CET | Update | - |
| article html file updated | 15 October 2017 09:54 CEST | Original file | - |
| article xml uploaded. | 15 October 2017 09:53 CEST | Update | https://www.mdpi.com/2227-9717/5/4/59/xml |
| article xml uploaded. | 15 October 2017 09:53 CEST | Original file | - |
| article pdf uploaded. | 15 October 2017 09:53 CEST | Version of Record | https://www.mdpi.com/2227-9717/5/4/59/pdf |
