| article html file updated | 7 February 2020 04:27 CET | Update | https://www.mdpi.com/2073-445X/5/1/6 |
| article html file updated | 6 May 2019 00:35 CEST | Update | - |
| article html file updated | 26 March 2019 20:31 CET | Update | - |
| article html file updated | 28 March 2016 11:56 CEST | Original file | - |
| article pdf uploaded. | 17 February 2016 04:22 CET | Updated version of record | https://www.mdpi.com/2073-445X/5/1/6/pdf |
| article xml uploaded. | 17 February 2016 04:22 CET | Original file | https://www.mdpi.com/2073-445X/5/1/6/xml |
| article pdf uploaded. | 6 February 2016 12:15 CET | Version of Record | https://www.mdpi.com/2073-445X/5/1/6/pdf-vor |
