| article html file updated | 8 February 2020 02:41 CET | Update | https://www.mdpi.com/2304-6732/4/2/26 |
| article html file updated | 24 September 2019 02:46 CEST | Update | - |
| article html file updated | 4 May 2019 04:05 CEST | Update | - |
| article html file updated | 29 June 2017 12:53 CEST | Update | - |
| article html file updated | 31 March 2017 12:37 CEST | Original file | - |
| article xml uploaded. | 31 March 2017 12:36 CEST | Original file | https://www.mdpi.com/2304-6732/4/2/26/xml |
| article pdf uploaded. | 31 March 2017 12:36 CEST | Version of Record | https://www.mdpi.com/2304-6732/4/2/26/pdf |
