| article html file updated | 6 February 2020 04:21 CET | Update | https://www.mdpi.com/2073-4441/5/3/1380 |
| article html file updated | 8 May 2019 00:31 CEST | Update | N/A |
| article html file updated | 21 March 2019 04:29 CET | Update | N/A |
| article html file updated | 19 December 2016 11:46 CET | Original file | N/A |
| article pdf uploaded. | 13 September 2013 14:34 CEST | Updated version of record | https://www.mdpi.com/2073-4441/5/3/1380/pdf |
| article pdf uploaded. | 12 September 2013 16:29 CEST | Version of Record | https://www.mdpi.com/2073-4441/5/3/1380/pdf-vor |
