| article html file updated | 8 February 2020 02:38 CET | Update | https://www.mdpi.com/2073-431X/6/2/14 |
| article html file updated | 24 September 2019 02:28 CEST | Update | - |
| article html file updated | 4 May 2019 04:12 CEST | Update | - |
| article html file updated | 28 June 2017 12:58 CEST | Update | - |
| article html file updated | 31 March 2017 12:17 CEST | Original file | - |
| article xml uploaded. | 31 March 2017 12:16 CEST | Update | https://www.mdpi.com/2073-431X/6/2/14/xml |
| article pdf uploaded. | 31 March 2017 12:16 CEST | Version of Record | https://www.mdpi.com/2073-431X/6/2/14/pdf |
