| article html file updated | 8 February 2020 06:34 CET | Update | https://www.mdpi.com/2075-4450/8/2/54 |
| article html file updated | 3 May 2019 20:40 CEST | Update | - |
| article html file updated | 30 June 2017 05:40 CEST | Update | - |
| article html file updated | 12 June 2017 15:10 CEST | Update | - |
| article xml uploaded. | 12 June 2017 15:09 CEST | Update | https://www.mdpi.com/2075-4450/8/2/54/xml |
| article pdf uploaded. | 12 June 2017 15:09 CEST | Updated version of record | https://www.mdpi.com/2075-4450/8/2/54/pdf |
| article html file updated | 26 May 2017 05:16 CEST | Original file | - |
| article pdf uploaded. | 26 May 2017 05:15 CEST | Updated version of record | https://www.mdpi.com/2075-4450/8/2/54/pdf-vor |
| article pdf uploaded. | 24 May 2017 18:03 CEST | Version of Record | https://www.mdpi.com/2075-4450/8/2/54/pdf-vor |
