| article html file updated | 8 February 2020 08:03 CET | Update | https://www.mdpi.com/2075-4663/5/2/40 |
| article html file updated | 25 September 2019 07:12 CEST | Update | - |
| article html file updated | 3 May 2019 17:53 CEST | Update | - |
| article html file updated | 29 June 2017 11:51 CEST | Update | - |
| article html file updated | 13 June 2017 09:46 CEST | Original file | - |
| article xml uploaded. | 13 June 2017 09:45 CEST | Original file | https://www.mdpi.com/2075-4663/5/2/40/xml |
| article pdf uploaded. | 13 June 2017 09:45 CEST | Updated version of record | https://www.mdpi.com/2075-4663/5/2/40/pdf |
| article pdf uploaded. | 12 June 2017 11:16 CEST | Version of Record | https://www.mdpi.com/2075-4663/5/2/40/pdf-vor |
