| article html file updated | 6 February 2020 07:03 CET | Update | https://www.mdpi.com/1422-0067/15/2/2087 |
| article html file updated | 7 May 2019 19:04 CEST | Update | N/A |
| article html file updated | 21 March 2019 11:51 CET | Update | N/A |
| article html file updated | 19 August 2015 19:21 CEST | Update | N/A |
| article html file updated | 20 March 2014 09:51 CET | Original file | N/A |
| article xml file uploaded | 20 March 2014 09:51 CET | Original file | https://www.mdpi.com/1422-0067/15/2/2087/xml |
| article pdf uploaded. | 29 January 2014 09:17 CET | Version of Record | https://www.mdpi.com/1422-0067/15/2/2087/pdf |
