| article html file updated | 6 February 2020 01:27 CET | Update | https://www.mdpi.com/2073-445X/2/2/131 |
| article html file updated | 8 May 2019 06:24 CEST | Update | N/A |
| article html file updated | 20 March 2019 20:51 CET | Update | N/A |
| article html file updated | 17 June 2015 08:19 CEST | Update | N/A |
| article html file updated | 14 August 2014 12:06 CEST | Original file | N/A |
| article xml file uploaded | 14 August 2014 12:06 CEST | Original file | https://www.mdpi.com/2073-445X/2/2/131/xml |
| article pdf uploaded. | 26 April 2013 16:46 CEST | Updated version of record | https://www.mdpi.com/2073-445X/2/2/131/pdf |
| article pdf uploaded. | 18 April 2013 15:02 CEST | Updated version of record | https://www.mdpi.com/2073-445X/2/2/131/pdf-vor |
| article pdf uploaded. | 10 April 2013 14:35 CEST | Version of Record | https://www.mdpi.com/2073-445X/2/2/131/pdf-vor |
