| article html file updated | 8 February 2020 20:22 CET | Update | https://www.mdpi.com/2305-6320/4/4/80 |
| article html file updated | 28 September 2019 05:57 CEST | Update | N/A |
| article html file updated | 2 May 2019 16:55 CEST | Update | N/A |
| article html file updated | 2 January 2018 20:48 CET | Update | N/A |
| article html file updated | 4 November 2017 11:46 CET | Original file | N/A |
| article xml uploaded. | 4 November 2017 11:44 CET | Original file | https://www.mdpi.com/2305-6320/4/4/80/xml |
| article pdf uploaded. | 4 November 2017 11:44 CET | Version of Record | https://www.mdpi.com/2305-6320/4/4/80/pdf |
