| article html file updated | 8 February 2020 02:50 CET | Update | https://www.mdpi.com/2079-8954/5/2/32 |
| article html file updated | 24 September 2019 03:36 CEST | Update | - |
| article html file updated | 4 May 2019 03:45 CEST | Update | - |
| article html file updated | 29 June 2017 11:52 CEST | Update | - |
| article html file updated | 6 April 2017 12:55 CEST | Original file | - |
| article xml uploaded. | 6 April 2017 12:54 CEST | Original file | https://www.mdpi.com/2079-8954/5/2/32/xml |
| article pdf uploaded. | 6 April 2017 12:54 CEST | Updated version of record | https://www.mdpi.com/2079-8954/5/2/32/pdf |
| article pdf uploaded. | 3 April 2017 09:23 CEST | Version of Record | https://www.mdpi.com/2079-8954/5/2/32/pdf-vor |
