| article html file updated | 7 February 2020 22:40 CET | Update | https://www.mdpi.com/2305-6304/5/1/6 |
| article html file updated | 23 September 2019 03:58 CEST | Update | - |
| article html file updated | 4 May 2019 12:41 CEST | Update | - |
| article html file updated | 30 March 2017 09:03 CEST | Update | - |
| article html file updated | 17 February 2017 07:01 CET | Update | - |
| article xml uploaded. | 17 February 2017 06:45 CET | Update | https://www.mdpi.com/2305-6304/5/1/6/xml |
| article pdf uploaded. | 17 February 2017 06:45 CET | Updated version of record | https://www.mdpi.com/2305-6304/5/1/6/pdf |
| article html file updated | 4 February 2017 11:37 CET | Original file | - |
| article xml uploaded. | 4 February 2017 11:36 CET | Original file | - |
| article pdf uploaded. | 4 February 2017 11:36 CET | Version of Record | https://www.mdpi.com/2305-6304/5/1/6/pdf-vor |
