| article html file updated | 7 February 2020 18:43 CET | Update | https://www.mdpi.com/2079-9276/5/4/41 |
| article html file updated | 22 September 2019 07:20 CEST | Update | - |
| article html file updated | 4 May 2019 21:08 CEST | Update | - |
| article html file updated | 30 December 2016 09:14 CET | Update | - |
| article html file updated | 28 November 2016 11:35 CET | Original file | - |
| article xml uploaded. | 28 November 2016 11:33 CET | Update | https://www.mdpi.com/2079-9276/5/4/41/xml |
| article xml uploaded. | 28 November 2016 11:33 CET | Original file | - |
| article pdf uploaded. | 28 November 2016 11:33 CET | Version of Record | https://www.mdpi.com/2079-9276/5/4/41/pdf |
