| article html file updated | 9 February 2020 11:22 CET | Update | https://www.mdpi.com/1660-4601/15/4/601 |
| article html file updated | 2 October 2019 00:04 CEST | Update | - |
| article html file updated | 1 May 2019 08:29 CEST | Update | - |
| article html file updated | 17 April 2019 08:24 CEST | Update | - |
| article html file updated | 29 March 2019 10:04 CET | Update | - |
| article html file updated | 1 May 2018 04:33 CEST | Update | - |
| article html file updated | 27 March 2018 06:52 CEST | Original file | - |
| article xml uploaded. | 27 March 2018 06:51 CEST | Original file | https://www.mdpi.com/1660-4601/15/4/601/xml |
| article pdf uploaded. | 27 March 2018 06:51 CEST | Version of Record | https://www.mdpi.com/1660-4601/15/4/601/pdf |
