| article html file updated | 7 February 2020 22:18 CET | Update | https://www.mdpi.com/1660-4601/14/2/121 |
| article html file updated | 23 September 2019 01:58 CEST | Update | - |
| article html file updated | 4 May 2019 13:26 CEST | Update | - |
| article html file updated | 2 March 2017 10:28 CET | Update | - |
| article html file updated | 26 January 2017 11:06 CET | Original file | - |
| article xml uploaded. | 26 January 2017 11:05 CET | Original file | https://www.mdpi.com/1660-4601/14/2/121/xml |
| article pdf uploaded. | 26 January 2017 11:05 CET | Version of Record | https://www.mdpi.com/1660-4601/14/2/121/pdf |
