| article html file updated | 8 February 2020 00:40 CET | Update | https://www.mdpi.com/1424-8220/17/3/501 |
| article html file updated | 23 September 2019 15:13 CEST | Update | - |
| article html file updated | 4 May 2019 08:29 CEST | Update | - |
| article html file updated | 31 March 2017 09:59 CEST | Update | - |
| article html file updated | 3 March 2017 10:09 CET | Original file | - |
| article xml uploaded. | 3 March 2017 10:08 CET | Original file | https://www.mdpi.com/1424-8220/17/3/501/xml |
| article pdf uploaded. | 3 March 2017 10:08 CET | Version of Record | https://www.mdpi.com/1424-8220/17/3/501/pdf |
