| article html file updated | 8 February 2020 17:27 CET | Update | https://www.mdpi.com/2076-0760/6/4/115 |
| article html file updated | 2 May 2019 23:29 CEST | Update | N/A |
| article html file updated | 29 September 2017 08:51 CEST | Original file | N/A |
| article xml uploaded. | 29 September 2017 08:50 CEST | Original file | https://www.mdpi.com/2076-0760/6/4/115/xml |
| article pdf uploaded. | 29 September 2017 08:50 CEST | Version of Record | https://www.mdpi.com/2076-0760/6/4/115/pdf |
