| article html file updated | 7 February 2020 02:53 CET | Update | https://www.mdpi.com/1424-8220/16/1/47 |
| article html file updated | 6 May 2019 03:34 CEST | Update | N/A |
| article html file updated | 26 March 2019 17:32 CET | Original file | N/A |
| article pdf uploaded. | 2 January 2016 03:06 CET | Updated version of record | https://www.mdpi.com/1424-8220/16/1/47/pdf |
| article xml uploaded. | 2 January 2016 03:05 CET | Update | https://www.mdpi.com/1424-8220/16/1/47/xml |
| article pdf uploaded. | 30 December 2015 13:29 CET | Version of Record | N/A |
| article xml uploaded. | 30 December 2015 13:29 CET | Original file | N/A |
