| article html file updated | 8 February 2020 04:08 CET | Update | https://www.mdpi.com/1660-3397/15/4/122 |
| article html file updated | 24 September 2019 10:56 CEST | Update | - |
| article html file updated | 4 May 2019 01:11 CEST | Update | - |
| article html file updated | 28 April 2017 08:24 CEST | Update | - |
| article html file updated | 21 April 2017 15:26 CEST | Original file | - |
| article xml uploaded. | 21 April 2017 15:25 CEST | Original file | https://www.mdpi.com/1660-3397/15/4/122/xml |
| article pdf uploaded. | 21 April 2017 15:25 CEST | Version of Record | https://www.mdpi.com/1660-3397/15/4/122/pdf |
