| article html file updated | 7 February 2020 17:59 CET | Update | https://www.mdpi.com/2305-6320/3/4/29 |
| article html file updated | 4 May 2019 22:35 CEST | Update | - |
| article html file updated | 15 November 2016 04:54 CET | Original file | - |
| article xml uploaded. | 15 November 2016 04:53 CET | Update | https://www.mdpi.com/2305-6320/3/4/29/xml |
| article xml uploaded. | 15 November 2016 04:53 CET | Original file | - |
| article pdf uploaded. | 15 November 2016 04:53 CET | Version of Record | https://www.mdpi.com/2305-6320/3/4/29/pdf |
