| article html file updated | 8 February 2020 14:33 CET | Update | https://www.mdpi.com/2304-6732/4/3/42 |
| article html file updated | 26 September 2019 18:32 CEST | Update | - |
| article html file updated | 3 May 2019 04:59 CEST | Update | - |
| article html file updated | 30 September 2017 15:42 CEST | Update | - |
| article html file updated | 26 August 2017 09:08 CEST | Original file | - |
| article xml uploaded. | 26 August 2017 09:07 CEST | Original file | https://www.mdpi.com/2304-6732/4/3/42/xml |
| article pdf uploaded. | 26 August 2017 09:07 CEST | Version of Record | https://www.mdpi.com/2304-6732/4/3/42/pdf |
