| article html file updated | 6 February 2020 00:10 CET | Update | https://www.mdpi.com/2073-4352/3/1/38 |
| article html file updated | 8 May 2019 09:25 CEST | Update | N/A |
| article html file updated | 20 March 2019 17:38 CET | Update | N/A |
| article html file updated | 17 June 2015 05:43 CEST | Update | N/A |
| article html file updated | 8 February 2013 09:37 CET | Update | N/A |
| article html file updated | 7 February 2013 17:56 CET | Update | N/A |
| article html file updated | 28 January 2013 15:51 CET | Original file | N/A |
| article xml uploaded. | 28 January 2013 15:51 CET | Original file | https://www.mdpi.com/2073-4352/3/1/38/xml |
| article pdf uploaded. | 23 January 2013 11:40 CET | Updated version of record | https://www.mdpi.com/2073-4352/3/1/38/pdf |
| article pdf uploaded. | 23 January 2013 11:02 CET | Version of Record | N/A |
