| article html file updated | 7 February 2020 16:47 CET | Update | https://www.mdpi.com/2306-5338/3/4/33 |
| article html file updated | 5 May 2019 00:51 CEST | Update | - |
| article html file updated | 21 October 2016 11:46 CEST | Original file | - |
| article xml uploaded. | 21 October 2016 11:44 CEST | Update | https://www.mdpi.com/2306-5338/3/4/33/xml |
| article xml uploaded. | 21 October 2016 11:44 CEST | Original file | - |
| article pdf uploaded. | 21 October 2016 11:44 CEST | Version of Record | https://www.mdpi.com/2306-5338/3/4/33/pdf |
