| article html file updated | 9 February 2020 01:46 CET | Update | https://www.mdpi.com/2076-0760/7/1/8 |
| article html file updated | 29 September 2019 14:56 CEST | Update | - |
| article html file updated | 2 May 2019 04:54 CEST | Update | - |
| article html file updated | 18 April 2019 02:58 CEST | Update | - |
| article html file updated | 28 March 2019 12:33 CET | Update | - |
| article pdf uploaded. | 23 January 2018 07:06 CET | Updated version of record | https://www.mdpi.com/2076-0760/7/1/8/pdf |
| article pdf uploaded. | 3 January 2018 06:05 CET | Updated version of record | - |
| article html file updated | 2 January 2018 21:02 CET | Original file | - |
| article xml uploaded. | 2 January 2018 15:25 CET | Original file | https://www.mdpi.com/2076-0760/7/1/8/xml |
