| article html file updated | 6 February 2020 07:57 CET | Update | https://www.mdpi.com/1422-0067/15/3/4657 |
| article html file updated | 7 May 2019 17:13 CEST | Update | N/A |
| article html file updated | 21 March 2019 13:59 CET | Update | N/A |
| article html file updated | 19 August 2015 23:58 CEST | Update | N/A |
| article html file updated | 8 April 2014 10:57 CEST | Original file | N/A |
| article xml file uploaded | 8 April 2014 10:57 CEST | Original file | https://www.mdpi.com/1422-0067/15/3/4657/xml |
| article pdf uploaded. | 17 March 2014 14:57 CET | Version of Record | https://www.mdpi.com/1422-0067/15/3/4657/pdf |
