| article html file updated | 8 February 2020 03:23 CET | Update | https://www.mdpi.com/1999-4907/8/4/119 |
| article html file updated | 24 September 2019 06:39 CEST | Update | N/A |
| article html file updated | 4 May 2019 02:35 CEST | Update | N/A |
| article html file updated | 28 April 2017 06:42 CEST | Update | N/A |
| article html file updated | 12 April 2017 09:40 CEST | Original file | N/A |
| article xml uploaded. | 12 April 2017 09:38 CEST | Original file | https://www.mdpi.com/1999-4907/8/4/119/xml |
| article pdf uploaded. | 12 April 2017 09:38 CEST | Version of Record | https://www.mdpi.com/1999-4907/8/4/119/pdf |
