| article html file updated | 8 February 2020 08:44 CET | Update | https://www.mdpi.com/2075-4663/5/2/44 |
| article html file updated | 3 May 2019 16:36 CEST | Update | - |
| article html file updated | 29 June 2017 11:52 CEST | Update | - |
| article html file updated | 21 June 2017 11:02 CEST | Original file | - |
| article xml uploaded. | 21 June 2017 11:00 CEST | Original file | https://www.mdpi.com/2075-4663/5/2/44/xml |
| article pdf uploaded. | 21 June 2017 11:00 CEST | Updated version of record | https://www.mdpi.com/2075-4663/5/2/44/pdf |
| article pdf uploaded. | 20 June 2017 14:32 CEST | Version of Record | https://www.mdpi.com/2075-4663/5/2/44/pdf-vor |
