| article html file updated | 6 February 2020 07:06 CET | Update | https://www.mdpi.com/1422-0067/15/2/2237 |
| article html file updated | 7 May 2019 18:58 CEST | Update | - |
| article html file updated | 21 March 2019 11:58 CET | Update | - |
| article html file updated | 19 August 2015 19:33 CEST | Update | - |
| article html file updated | 20 March 2014 09:53 CET | Original file | - |
| article xml file uploaded | 20 March 2014 09:53 CET | Original file | https://www.mdpi.com/1422-0067/15/2/2237/xml |
| article pdf uploaded. | 3 February 2014 13:24 CET | Version of Record | https://www.mdpi.com/1422-0067/15/2/2237/pdf |
