| article html file updated | 7 February 2020 16:15 CET | Update | https://www.mdpi.com/2306-7381/3/4/29 |
| article html file updated | 5 May 2019 01:50 CEST | Update | - |
| article html file updated | 13 October 2016 09:03 CEST | Original file | - |
| article xml uploaded. | 13 October 2016 09:01 CEST | Original file | https://www.mdpi.com/2306-7381/3/4/29/xml |
| article pdf uploaded. | 13 October 2016 09:01 CEST | Version of Record | https://www.mdpi.com/2306-7381/3/4/29/pdf |
