| article html file updated | 8 February 2020 10:35 CET | Update | https://www.mdpi.com/2075-4450/8/3/68 |
| article html file updated | 25 September 2019 20:32 CEST | Update | - |
| article html file updated | 3 May 2019 13:09 CEST | Update | - |
| article html file updated | 6 October 2017 05:05 CEST | Update | - |
| article html file updated | 11 July 2017 03:56 CEST | Original file | - |
| article pdf uploaded. | 11 July 2017 03:56 CEST | Updated version of record | https://www.mdpi.com/2075-4450/8/3/68/pdf |
| article xml uploaded. | 11 July 2017 03:55 CEST | Update | https://www.mdpi.com/2075-4450/8/3/68/xml |
| article pdf uploaded. | 11 July 2017 03:55 CEST | Updated version of record | - |
