| article html file updated | 8 February 2020 19:14 CET | Update | https://www.mdpi.com/2076-3263/7/4/108 |
| article html file updated | 2 May 2019 19:29 CEST | Update | N/A |
| article html file updated | 2 January 2018 12:23 CET | Update | N/A |
| article html file updated | 23 October 2017 14:17 CEST | Original file | N/A |
| article xml uploaded. | 23 October 2017 14:16 CEST | Original file | https://www.mdpi.com/2076-3263/7/4/108/xml |
| article pdf uploaded. | 23 October 2017 14:16 CEST | Version of Record | https://www.mdpi.com/2076-3263/7/4/108/pdf |
