| article html file updated | 7 February 2020 23:45 CET | Update | https://www.mdpi.com/2079-9276/6/1/11 |
| article html file updated | 4 May 2019 10:32 CEST | Update | - |
| article html file updated | 30 March 2017 09:00 CEST | Update | - |
| article html file updated | 22 February 2017 06:42 CET | Original file | - |
| article xml uploaded. | 22 February 2017 06:41 CET | Original file | https://www.mdpi.com/2079-9276/6/1/11/xml |
| article pdf uploaded. | 22 February 2017 06:41 CET | Updated version of record | https://www.mdpi.com/2079-9276/6/1/11/pdf |
| article pdf uploaded. | 19 February 2017 10:04 CET | Version of Record | https://www.mdpi.com/2079-9276/6/1/11/pdf-vor |
