| article html file updated | 8 February 2020 06:39 CET | Update | https://www.mdpi.com/2075-4701/7/6/189 |
| article html file updated | 25 September 2019 00:06 CEST | Update | - |
| article html file updated | 3 May 2019 20:29 CEST | Update | - |
| article html file updated | 28 June 2017 13:55 CEST | Update | - |
| article html file updated | 25 May 2017 08:56 CEST | Original file | - |
| article xml uploaded. | 25 May 2017 08:54 CEST | Update | https://www.mdpi.com/2075-4701/7/6/189/xml |
| article pdf uploaded. | 25 May 2017 08:54 CEST | Version of Record | https://www.mdpi.com/2075-4701/7/6/189/pdf |
