| article html file updated | 7 February 2020 15:30 CET | Update | https://www.mdpi.com/1999-4907/7/10/211 |
| article html file updated | 5 May 2019 03:11 CEST | Update | N/A |
| article html file updated | 28 October 2016 09:30 CEST | Update | N/A |
| article html file updated | 24 September 2016 05:17 CEST | Original file | N/A |
| article xml uploaded. | 24 September 2016 05:16 CEST | Update | https://www.mdpi.com/1999-4907/7/10/211/xml |
| article xml uploaded. | 24 September 2016 05:16 CEST | Original file | N/A |
| article pdf uploaded. | 24 September 2016 05:16 CEST | Version of Record | https://www.mdpi.com/1999-4907/7/10/211/pdf |
