| article html file updated | 12 February 2020 07:39 CET | Update | https://www.mdpi.com/2227-9709/6/2/17 |
| article html file updated | 18 October 2019 23:26 CEST | Update | N/A |
| article html file updated | 5 July 2019 06:23 CEST | Update | N/A |
| article html file updated | 5 May 2019 12:37 CEST | Original file | N/A |
| article pdf uploaded. | 5 May 2019 12:36 CEST | Updated version of record | https://www.mdpi.com/2227-9709/6/2/17/pdf |
| article xml uploaded. | 5 May 2019 12:36 CEST | Update | https://www.mdpi.com/2227-9709/6/2/17/xml |
| article xml file uploaded | 5 May 2019 12:36 CEST | Update | N/A |
| article pdf uploaded. | 25 April 2019 08:07 CEST | Version of Record | https://www.mdpi.com/2227-9709/6/2/17/pdf-vor |
| article xml file uploaded | 25 April 2019 08:07 CEST | Original file | N/A |
