| article html file updated | 6 February 2020 00:33 CET | Update | https://www.mdpi.com/1422-0067/14/2/3901 |
| article html file updated | 8 May 2019 08:27 CEST | Update | - |
| article html file updated | 20 March 2019 18:38 CET | Update | - |
| article html file updated | 17 June 2015 06:35 CEST | Update | - |
| article html file updated | 3 December 2013 08:17 CET | Update | - |
| article xml file uploaded | 3 December 2013 08:17 CET | Update | https://www.mdpi.com/1422-0067/14/2/3901/xml |
| article html file updated | 5 March 2013 19:38 CET | Original file | - |
| article xml file uploaded | 5 March 2013 19:37 CET | Original file | - |
| article pdf uploaded. | 14 February 2013 08:37 CET | Version of Record | https://www.mdpi.com/1422-0067/14/2/3901/pdf |
