| article html file updated | 7 February 2020 05:13 CET | Update | https://www.mdpi.com/1424-8220/16/3/306 |
| article html file updated | 5 May 2019 22:54 CEST | Update | - |
| article html file updated | 26 March 2019 22:06 CET | Update | - |
| article html file updated | 30 March 2016 07:48 CEST | Original file | - |
| article pdf uploaded. | 2 March 2016 07:11 CET | Updated version of record | https://www.mdpi.com/1424-8220/16/3/306/pdf |
| article xml uploaded. | 2 March 2016 07:11 CET | Update | https://www.mdpi.com/1424-8220/16/3/306/xml |
| article pdf uploaded. | 29 February 2016 11:25 CET | Version of Record | https://www.mdpi.com/1424-8220/16/3/306/pdf-vor |
| article xml uploaded. | 29 February 2016 11:25 CET | Original file | - |
