| article html file updated | 7 February 2020 20:35 CET | Update | https://www.mdpi.com/1660-4601/14/1/31 |
| article html file updated | 22 September 2019 16:49 CEST | Update | N/A |
| article html file updated | 4 May 2019 17:13 CEST | Update | N/A |
| article html file updated | 7 February 2017 10:47 CET | Update | N/A |
| article html file updated | 30 December 2016 12:58 CET | Original file | N/A |
| article xml uploaded. | 30 December 2016 12:57 CET | Original file | https://www.mdpi.com/1660-4601/14/1/31/xml |
| article pdf uploaded. | 30 December 2016 12:57 CET | Version of Record | https://www.mdpi.com/1660-4601/14/1/31/pdf |
