| article html file updated | 8 February 2020 20:34 CET | Update | https://www.mdpi.com/2311-5629/3/4/34 |
| article html file updated | 28 September 2019 07:21 CEST | Update | - |
| article html file updated | 2 May 2019 16:25 CEST | Update | - |
| article html file updated | 7 November 2017 12:01 CET | Original file | - |
| article xml uploaded. | 7 November 2017 12:00 CET | Update | https://www.mdpi.com/2311-5629/3/4/34/xml |
| article xml uploaded. | 7 November 2017 12:00 CET | Original file | - |
| article pdf uploaded. | 7 November 2017 12:00 CET | Version of Record | https://www.mdpi.com/2311-5629/3/4/34/pdf |
