| article html file updated | 7 February 2020 20:31 CET | Update | https://www.mdpi.com/2311-7524/3/1/15 |
| article html file updated | 22 September 2019 16:26 CEST | Update | - |
| article html file updated | 4 May 2019 17:21 CEST | Update | - |
| article html file updated | 4 January 2017 09:19 CET | Update | - |
| article xml uploaded. | 4 January 2017 09:18 CET | Update | https://www.mdpi.com/2311-7524/3/1/15/xml |
| article pdf uploaded. | 4 January 2017 09:18 CET | Updated version of record | https://www.mdpi.com/2311-7524/3/1/15/pdf |
| article html file updated | 30 December 2016 04:58 CET | Original file | - |
| article xml uploaded. | 30 December 2016 04:57 CET | Original file | - |
| article pdf uploaded. | 30 December 2016 04:57 CET | Version of Record | https://www.mdpi.com/2311-7524/3/1/15/pdf-vor |
