| article html file updated | 8 February 2020 00:56 CET | Update | https://www.mdpi.com/2073-445X/6/1/18 |
| article html file updated | 23 September 2019 16:50 CEST | Update | - |
| article html file updated | 4 May 2019 07:52 CEST | Update | - |
| article html file updated | 28 March 2017 11:57 CEST | Update | - |
| article html file updated | 7 March 2017 15:11 CET | Update | - |
| article html file updated | 7 March 2017 15:11 CET | Update | - |
| article html file updated | 7 March 2017 15:11 CET | Original file | - |
| article xml uploaded. | 7 March 2017 15:10 CET | Original file | https://www.mdpi.com/2073-445X/6/1/18/xml |
| article pdf uploaded. | 7 March 2017 15:10 CET | Version of Record | https://www.mdpi.com/2073-445X/6/1/18/pdf |
