| article html file updated | 6 February 2020 15:20 CET | Update | https://www.mdpi.com/1424-8220/15/1/2228 |
| article html file updated | 9 January 2020 09:05 CET | Update | - |
| article html file updated | 20 September 2019 17:10 CEST | Update | - |
| article html file updated | 7 May 2019 02:10 CEST | Update | - |
| article html file updated | 25 March 2019 20:46 CET | Update | - |
| article html file updated | 21 August 2015 06:11 CEST | Update | - |
| article html file updated | 13 February 2015 07:11 CET | Original file | - |
| article xml file uploaded | 13 February 2015 07:11 CET | Original file | https://www.mdpi.com/1424-8220/15/1/2228/xml |
| article pdf uploaded. | 21 January 2015 09:59 CET | Updated version of record | https://www.mdpi.com/1424-8220/15/1/2228/pdf |
| article pdf uploaded. | 20 January 2015 14:24 CET | Version of Record | https://www.mdpi.com/1424-8220/15/1/2228/pdf-vor |
