| article html file updated | 8 February 2020 06:55 CET | Update | https://www.mdpi.com/2226-4310/4/2/29 |
| article html file updated | 25 September 2019 01:29 CEST | Update | - |
| article html file updated | 3 May 2019 20:00 CEST | Update | - |
| article html file updated | 28 June 2017 12:20 CEST | Update | - |
| article html file updated | 5 June 2017 05:11 CEST | Original file | - |
| article xml uploaded. | 5 June 2017 05:10 CEST | Original file | https://www.mdpi.com/2226-4310/4/2/29/xml |
| article pdf uploaded. | 5 June 2017 05:10 CEST | Updated version of record | https://www.mdpi.com/2226-4310/4/2/29/pdf |
| article pdf uploaded. | 28 May 2017 09:08 CEST | Version of Record | https://www.mdpi.com/2226-4310/4/2/29/pdf-vor |
