| article html file updated | 6 February 2020 00:24 CET | Update | https://www.mdpi.com/1424-8220/13/2/2113 |
| article html file updated | 8 January 2020 20:39 CET | Update | N/A |
| article html file updated | 19 September 2019 17:41 CEST | Update | N/A |
| article html file updated | 8 May 2019 08:48 CEST | Update | N/A |
| article html file updated | 20 March 2019 18:14 CET | Update | N/A |
| article html file updated | 17 June 2015 06:14 CEST | Update | N/A |
| article html file updated | 30 October 2013 09:49 CET | Update | N/A |
| article xml file uploaded | 30 October 2013 09:49 CET | Update | https://www.mdpi.com/1424-8220/13/2/2113/xml |
| article html file updated | 23 April 2013 15:18 CEST | Update | N/A |
| article xml file uploaded | 23 April 2013 15:18 CEST | Update | N/A |
| article html file updated | 25 March 2013 12:21 CET | Original file | N/A |
| article xml file uploaded | 25 March 2013 12:21 CET | Original file | N/A |
| article pdf uploaded. | 6 February 2013 16:07 CET | Updated version of record | https://www.mdpi.com/1424-8220/13/2/2113/pdf |
| article pdf uploaded. | 5 February 2013 12:17 CET | Version of Record | https://www.mdpi.com/1424-8220/13/2/2113/pdf-vor |
